Tropescilloscope: Chekhov's Gunman

Earlier-introduced minor character is actually very important. (read more at tvtropes.org)

More Tropes Pun aka: Incredibly Lame Pun Daddy's Girl '80s Hair Better to Die than Be Killed Pragmatic Villainy Arson, Murder, and Jaywalking Actor Allusion The Casanova Five-Man Band Country Matters Celebrity Paradox Heroes Want Redheads Spell My Name with an "S" Hypocrite Gratuitous English Morality Pet Guile Hero The '80s Shipper on Deck Mr. Exposition Bavarian Fire Drill Fake Shemp Dark and Troubled Past Intergenerational Friendship The Mole Your Head A-Splode Famous Last Words Annoying Younger Sibling Karmic Death Heterosexual Life-Partners Red Oni, Blue Oni Light Is Not Good Taking You with Me Trailers Always Spoil Take a Third Option May–December Romance Camp Gay Sexy Discretion Shot The '60s In Medias Res Impaled with Extreme Prejudice Closed Circle The Load Face–Heel Turn Say My Name Science Fiction Films Rule of Three Blatant Lies Tagline Call-Back Decoy Protagonist Coming-of-Age Story Word of God Action Film, Quiet Drama Scene Black Best Friend Mood Whiplash Crazy Jealous Guy More Dakka Advertised Extra I Need a Freaking Drink Antagonist Title Imperial Stormtrooper Marksmanship Academy Those Two Bad Guys Diabolus ex Machina Failed a Spot Check Maybe Magic, Maybe Mundane Pre-Mortem One-Liner Slashed Throat Rule of Symbolism Fatal Family Photo No Name Given Vomit Indiscretion Shot Rule of Funny Show Within a Show Fat Bastard Knight Templar Yandere The Chick As Himself Nice Guy Parental Abandonment Love at First Sight Villainous Breakdown Outrun the Fireball Evil Cannot Comprehend Good Meaningful Echo Evil Plan Author Avatar Dressing as the Enemy Serious Business Continuity Nod Bar Brawl A Father to His Men Bunny-Ears Lawyer Foregone Conclusion An Aesop Rape as Drama Frame-Up Video Credits Based on a True Story A God Am I Mad Scientist Gory Discretion Shot The Brute The Ditz Wicked Cultured The Ghost Affectionate Parody A Minor Kidroduction Conspicuous CG Pimped-Out Dress Wrong Genre Savvy Cool Guns Ragtag Bunch of Misfits Horror Films Action Girl Domestic Abuse Early Installment Weirdness Bond One-Liner Only One Name Despair Event Horizon Ripped from the Headlines Bland-Name Product Fiery Redhead Race Against the Clock Arch-Enemy Monumental Damage Author Appeal All for Nothing Big Bad Fan Disservice Kubrick Stare Race Lift Scary Black Man Military and Warfare Films Death Seeker Laser-Guided Karma "Where Are They Now?" Epilogue Death by Adaptation Psychopathic Manchild Screw the Rules, I Have Money! Anguished Declaration of Love Cluster F-Bomb Early-Bird Cameo Manipulative Bastard Serial Killer Storming the Castle Never Trust a Trailer aka: Trailers Always Lie Ascended Extra Evil Brit Asshole Victim Card-Carrying Villain Small Name, Big Ego Jack Bauer Interrogation Technique One Steve Limit Adaptational Attractiveness Danny Peary Cult Movies List Bond Villain Stupidity Adaptation Name Change One-Word Title From Bad to Worse Ghost Fiction The Lost Lenore Deliberately Monochrome In the Back An Arm and a Leg Cowboy Cop Made of Explodium Gone Horribly Right Cool Shades Spared by the Adaptation Stuff Blowing Up Dwindling Party Villain Song All Just a Dream The Power of Love Would Hurt a Child Public Domain Feature Films Break the Haughty Arranged Marriage Contrived Coincidence Covers Always Lie Setting Update Hell Is That Noise Rape Is a Special Kind of Evil Does Not Like Shoes You Have Outlived Your Usefulness Bilingual Bonus Drugs Are Bad Amusing Injuries Same Language Dub Disney Villain Death Only Sane Man Blackmail Russian Films Chekhov's Gun Noodle Incident The Ace Film Noir Due to the Dead The Voiceless Auto Erotica Never Found the Body Skewed Priorities Fire-Forged Friends Obstructive Bureaucrat This Is Gonna Suck Funny Background Event Crazy-Prepared Book-Ends Eldritch Abomination Humiliation Conga Spiritual Successor Stock Footage The Cameo Fun with Acronyms Pretty Little Headshots Sanity Slippage Cruel and Unusual Death Dramedy Alpha Bitch Gainax Ending Sir Not-Appearing-in-This-Trailer Random Events Plot Drowning My Sorrows Happily Married Why Don't You Just Shoot Him? Screw the Rules, I'm Doing What's Right! Rated M for Manly Drill Sergeant Nasty Demonic Possession Plot Hole Hair of Gold, Heart of Gold Love Triangle The Oner Does This Remind You of Anything? Off with His Head! Madness Mantra Central Theme What You Are in the Dark Actually Pretty Funny Woman in White Parental Incest Red Herring I Have Your Wife Shirtless Scene Offscreen Teleportation Bad Boss The Mafia Rewatch Bonus Chuck Cunningham Syndrome Slasher Movie Evil Is Petty The Bully Amoral Attorney Nothing Is Scarier Sole Survivor Expy Disguised in Drag Air-Vent Passageway Ambiguous Ending Bowdlerise Romantic False Lead Beware the Nice Ones Belligerent Sexual Tension Unresolved Sexual Tension The Film of the Book Idiot Ball Knife Nut Half the Man He Used to Be NO INDOOR VOICE Adaptational Badass Catch-Phrase Canadian Movies Getting Crap Past the Radar Captain Obvious Funny Foreigner Heel–Face Turn No-Holds-Barred Beatdown Martial Arts Movie Meaningful Background Event Not What It Looks Like Older Than They Look Apocalypse How Expository Hairstyle Change Sudden Sequel Death Syndrome Handicapped Badass B-Movie Badass Longcoat Mugging the Monster Roaring Rampage of Revenge Dark Is Not Evil Training Montage Screw the Money, I Have Rules! Aside Glance Artistic License – Military Silent Movie La Résistance Sassy Black Woman Large Ham Ooh, Me Accent's Slipping Dark Reprise It's Personal Death of a Child Pretty in Mink Reality Ensues Australian Movies The Vamp Interrupted Suicide Laughing Mad Agony of the Feet Revenge Chekhov's Skill Horror Doesn't Settle for Simple Tuesday Unusually Uninteresting Sight Victoria's Secret Compartment Downer Ending No Antagonist Those Two Guys Bad "Bad Acting" Determinator Works Set in World War II Rousing Speech What Happened to the Mouse? Self-Deprecation Character Development Non-Indicative Name Moment Killer Fanservice Eureka Moment Beta Couple Shut Up, Hannibal! Anachronism Stew Horror Comedy Dramatic Gun Cock Protagonist Title Sealed Evil in a Can Accidental Murder And the Adventure Continues Bound and Gagged Sir Swears-a-Lot What the Hell, Hero? Damsel in Distress A.I. Is a Crapshoot Spiteful Spit Spanner in the Works Genre Savvy An Axe to Grind Ambiguously Gay Not Quite Dead Well-Intentioned Extremist Enemy Mine Mooks Artistic License – Physics Truth in Television Historical Villain Upgrade Punctuated! For! Emphasis! Creative Closing Credits Parental Neglect Meet Cute Flashback Death by Sex Male Gaze Did Not Get the Girl Obviously Evil Sinister Minister Didn't Think This Through Blonde, Brunette, Redhead Recap / RiffTrax aka: Riff Trax Movies Biopic Action Prologue Boom, Headshot! Henpecked Husband Ms. Fanservice Real Life Writes the Plot Ironic Echo Defiant to the End Shout-Out Break the Cutie Tempting Fate Suspiciously Similar Substitute Leitmotif Foil Comically Missing the Point Hollywood Darkness Ungrateful Bastard Kill It with Fire After the End I Just Shot Marvin in the Face No Ending In Name Only My Greatest Failure Red Right Hand Deadpan Snarker Whole Plot Reference Reality Has No Subtitles Armor-Piercing Question Big "NO!" Guns Akimbo Put on a Bus Papa Wolf Aww, Look! They Really Do Love Each Other Men Are the Expendable Gender Award-Bait Song Ship Tease Crapsack World Abusive Parents A Date with Rosie Palms And Starring Four-Temperament Ensemble The Stoic Overprotective Dad And I Must Scream Epic Movie Mama Bear Take That! Calling the Old Man Out British Films Offscreen Moment of Awesome Brutal Honesty Composite Character Loads and Loads of Characters Brother–Sister Incest Reasonable Authority Figure Only in It for the Money Even Evil Has Standards The Atoner Posthumous Character Leave the Camera Running Adaptational Villainy Adorkable Heroic Sacrifice Neck Snap Thriller The Hero Dies As Long as It Sounds Foreign Loophole Abuse Bare Your Midriff Not So Stoic Genre Throwback Title Drop Suspiciously Specific Denial Running Gag Once More, with Clarity! Almost Kiss My Beloved Smother The Quiet One Red Eyes, Take Warning Historical In-Joke Earn Your Happy Ending timeperiod Refuge in Audacity Chewing the Scenery Kick the Dog Obfuscating Stupidity Those Wacky Nazis Fish out of Water Even Evil Has Loved Ones Greater-Scope Villain Alas, Poor Villain Up to Eleven Room Full of Crazy Logo Joke Smug Snake Casting Gag Soft Glass He Who Fights Monsters O.O.C. Is Serious Business Film Noir Index Broken Pedestal The Smurfette Principle Mythology Gag Stepford Smiler How We Got Here Translation Convention Smoking Is Cool "Awesome McCool" Name Establishing Character Moment One-Man Army Green-Eyed Monster Fourth Date Marriage Romantic Comedy Get Out! Curse Cut Short Token Minority Corrupt Corporate Executive Nice Job Breaking It, Hero! Maybe Ever After Took a Level in Jerkass The Reveal Worthy Opponent Redemption Equals Death Match Cut Real Life Male Frontal Nudity The Un-Reveal Wham Shot Final Girl Chase Scene Fatal Flaw Vomit Discretion Shot Pay Evil unto Evil Peek-a-Boo Corpse Flipping the Bird The Musical Blood Knight Malevolent Masked Men Dual Wielding Hong Kong Films Zombie Stories Bolivian Army Ending Big-Bad Ensemble You Have Got to Be Kidding Me! Let's Get Dangerous! Major Injury Underreaction Roger Ebert: Great Movies List Freeze-Frame Bonus Insistent Terminology Politically Incorrect Villain Black Dude Dies First Homage Anyone Can Die Undying Loyalty Dirty Coward Hidden Depths Animal Motifs Extremely Short Timespan Our Zombies Are Different Historical-Domain Character The Hero Accidental Misnaming Adaptation Dye-Job Retcon Ugly Guy, Hot Wife Imagine Spot It Can Think Visual Pun Exactly What It Says on the Tin Your Cheating Heart Big Damn Heroes Unreliable Narrator Action Genre Eyepatch of Power Badass Grandpa True Companions Killed Mid-Sentence No-Sell Badass Normal Hooker with a Heart of Gold Fantasy Films Suddenly SHOUTING! Twist Ending You Have Failed Me Death Glare Shower Scene Dissonant Serenity It Will Never Catch On Improvised Weapon Crucified Hero Shot Disney Death Important Haircut Defrosting Ice Queen Ambiguous Disorder Dark Action Girl Double-Meaning Title Creepy Child "The Reason You Suck" Speech The Remake Index of Film Westerns Awesome, but Impractical Insult Backfire I Did What I Had to Do Kick the Son of a Bitch Stealth Pun Aluminum Christmas Trees The Place Easily Forgiven "Shaggy Dog" Story Cat Scare War Is Hell Girl-on-Girl Is Hot Kill 'em All Motor Mouth Eiffel Tower Effect N-Word Privileges Black and Gray Morality Honor Before Reason The Lancer Bring My Brown Pants Names to Run Away from Really Fast There Is No Kill Like Overkill She's Got Legs Very Loosely Based on a True Story Credits Gag "Well Done, Son!" Guy Deliberate Values Dissonance Big Brother Instinct Bittersweet Ending Attempted Rape Deal with the Devil Dumb Blonde Big Fancy House Anachronic Order Cold-Blooded Torture Everyone Has Standards Stalker with a Crush All Girls Want Bad Boys Immune to Bullets As the Good Book Says... Alliterative Name Artistic License – Gun Safety Friend to All Children Bloody Hilarious Pragmatic Adaptation Lighter and Softer Combat Pragmatist Pyrrhic Victory Heroic BSoD Batman Gambit German Films Chekhov's Gunman Never Trust a Trailer Femme Fatale The Dragon Deconstruction Evil Sounds Deep Developing Doomed Characters The Alleged Car Superhero Lampshade Hanging Hair-Trigger Temper The Sociopath Car Fu Hero of Another Story The End... Or Is It? The Bad Guy Wins Stylistic Suck Eagleland Groin Attack Dogged Nice Guy My God, What Have I Done? Mind Screw Cloudcuckoolander Not So Above It All Adaptational Heroism Artistic License – Geography Everyone Calls Him "Barkeep" Oh, Crap! Villain Opening Scene Mercy Kill Wham Line Pet the Dog Redshirt Army folderlabel Butt-Monkey Even Bad Men Love Their Mamas Paper-Thin Disguise Police are Useless Wretched Hive Dirty Old Man Woman Scorned Why Did It Have to Be Snakes? Mexican Standoff Dutch Angle Age Lift Big Bad Duumvirate Straight Gay Fantastic Racism Italian Films Jerkass Has a Point Bald of Evil Fingore The Dreaded Facial Horror Exact Words Arc Words Slap-Slap-Kiss Would Hit a Girl The Stinger Mighty Whitey The Starscream Hope Spot BFG Adults Are Useless Anti-Villain Screw This, I'm Outta Here! Breaking the Fourth Wall Bottomless Magazines Slasher Smile Determinator aka: The Determinator Villain Protagonist Cool Old Guy The Faceless Naked People Are Funny Toplessness from the Back Dying Moment of Awesome Badass Boast Faking the Dead Playing Gertrude She Cleans Up Nicely Never My Fault Hypocritical Humor Bi the Way Toilet Humour aka: Toilet Humor Dramatic Irony Evil Is Hammy Reckless Gun Usage Television Movie Index Evil Counterpart MacGuffin Plucky Comic Relief Gilligan Cut Improbable Weapon User Evil Laugh Call-Forward Becoming the Mask Genre Shift The Dog Bites Back Tranquil Fury Body Horror World of Ham You Killed My Father Silence Is Golden I Want My Beloved to Be Happy Adult Fear No Good Deed Goes Unpunished Black Comedy Rape For the Evulz Badass Bookworm The Alcoholic Tap on the Head Vitriolic Best Buds Nice Job Fixing It, Villain! Woobie, Destroyer of Worlds All There in the Script Sequel Escalation Man on Fire Married to the Job Stealth Hi/Bye Distracted by the Sexy Rule of Cool Grievous Bottley Harm Only a Flesh Wound Extreme Doormat Psychological Thriller Missing Mom Soundtrack Dissonance Music Stories Jerkass Evil vs. Evil Manchild The Great Depression Manly Tears Implacable Man Anti-Hero Narrator Sports Stories Precision F-Strike Dropped a Bridge on Him Heel Realization Leaning on the Fourth Wall Disappeared Dad Eye Scream Adaptation Expansion Jerk with a Heart of Gold Deus ex Machina Rasputinian Death Be Careful What You Wish For Punny Name Action Survivor Dirty Cop Our Vampires Are Different Beard of Evil Wounded Gazelle Gambit Bitch in Sheep's Clothing Psycho for Hire Sadistic Choice Berserk Button Affably Evil Vampire Fiction Improbable Aiming Skills Abhorrent Admirer Re-Cut Riddle for the Ages Naïve Newcomer Sequel Hook Neck Lift Beauty Is Never Tarnished The X of Y Mystery and Detective Films Hoist by His Own Petard Foreshadowing Camera Abuse Good Is Not Nice Babies Ever After All There in the Manual Animal Title Index Super Strength Fanservice Extra Double Entendre Dull Surprise Gender Flip Manic Pixie Dream Girl Properly Paranoid No OSHA Compliance Demoted to Extra Film Series Daylight Horror Karma Houdini Back from the Dead Scare Chord Disproportionate Retribution Drives Like Crazy Epic Fail The Cavalry Dies Wide Open Nice Hat Bloodier and Gorier Death by Irony Face Death with Dignity The Chessmaster Cain and Abel Crouching Moron, Hidden Badass The Un-Favourite aka: The Un Favorite The '90s Betty and Veronica Brainless Beauty Chiaroscuro Freudian Excuse For Want of a Nail Left the Background Music On Last-Name Basis Empathic Environment Star-Crossed Lovers Blood from the Mouth As You Know Broken Aesop Fate Worse than Death The Smart Guy Time Skip Shoot the Shaggy Dog Ax-Crazy Irony Every Car Is a Pinto The Big Guy Bury Your Gays Took a Level in Badass Product Placement Big Eater Jerk Jock Jitter Cam Sci-Fi Horror Market-Based Title Animated Credits Opening Jump Scare Vacation Films Cat Fight He Knows Too Much It's All About Me Hate Sink Cassandra Truth Red Shirt Brick Joke Novelization Unusual Euphemism Only Known by Their Nickname Reality Is Unrealistic Creator Cameo Bullying a Dragon Intrepid Reporter Unspoken Plan Guarantee Driven to Suicide Kids Are Cruel From Nobody to Nightmare Children Are Innocent Historical Hero Upgrade Hero Antagonist Faux Affably Evil I'm a Humanitarian Humans Are Bastards Instant Death Bullet Bloodless Carnage Broken Bird Darkest Hour French Films Depraved Bisexual The '70s Line-of-Sight Name Totally Radical Department of Redundancy Department Fainting Parental Substitute Mistaken for Gay Have a Gay Old Time Framing Device Here We Go Again! Cool Old Lady Darker and Edgier Mr. Fanservice Costume Porn Rich Bitch Police Brutality Not So Different The Stoner Pre-Asskicking One-Liner Corpsing Bait-and-Switch Catapult Nightmare Off-into-the-Distance Ending Together in Death Canon Foreigner 20 Minutes into the Future Destination Defenestration The '50s Informed Ability Villain Ball Retirony Not Even Bothering with the Accent Needs Wiki Magic Love Captain Ersatz Christmas Movies Index Curb-Stomp Battle Ominous Latin Chanting No Celebrities Were Harmed Lock and Load Montage Taking the Bullet Colour-Coded for Your Convenience aka: Color Coded For Your Convenience Hollywood Law Artistic License – Biology Improbable Infant Survival aka: Infant Immortality Badass in a Nice Suit Japanese Films Ass Shove Made of Iron All Men Are Perverts Sliding Scale of Idealism vs. Cynicism Not Using the "Z" Word Artistic License – History Gold Digger Cool Car Retired Badass Adapted Out Recycled IN SPACE! Scenery Porn Grey and Gray Morality Shell-Shocked Veteran Adaptation Distillation Meaningful Name Really Gets Around Documentary Sacrificial Lion Poor Communication Kills Too Dumb to Live Throwing Your Sword Always Works Insane Troll Logic Punch-Clock Villain Shown Their Work Artistic License – Law Unwitting Instigator of Doom Authority Equals Asskicking Black Comedy Gorn Evil-Detecting Dog Big Applesauce Make It Look Like an Accident Overly Long Gag Scenery Gorn Mundane Made Awesome Villain with Good Publicity