This list includes 30 Male costume ideas that start with I, from “ICE Agent” to “Uncle Iroh”. The entries cover characters, occupations, animals, and mythic figures for Halloween, cosplay, and themed parties.

Male costume ideas that start with I are costume concepts and character choices beginning with the letter I. Many draw on pop culture, like Uncle Iroh from Avatar, or on classic occupations such as ICE Agent.

Below you’ll find the table with ‘origin’ and ‘required pieces’.

origin: You get a short tag showing a costume’s source, era, or genre to clarify its context.

required pieces: You see 3–6 essential items that let you shop or DIY quickly for the costume.

Male costume ideas that start with I

Name Origin/Scientific name Required pieces Typical search terms Description
Indiana Jones fictional — Indiana Jones fedora, leather jacket, satchel, whip, khaki shirt, boots “Indiana Jones costume, Indy cosplay, archaeologist costume men, fedora whip” Classic adventurer look that suits men—easy DIY with thrifted jacket, fedora and a buckled satchel; variations include movie-specific outfits.
Iron Man fictional — Marvel red/gold armor or jacket, arc reactor chest prop, helmet or mask, gloves “Iron Man costume, Tony Stark suit, Marvel cosplay, arc reactor DIY” High-impact superhero costume; buy a mask and arc-reactor or DIY LEDs for a convincing Tony Stark/Iron Man mash-up.
Iceman (X-Men) fictional — Marvel X-Men jacket or bodysuit, blue/white body paint, icy makeup, optional ice props “Iceman cosplay, Bobby Drake costume, X-Men ice powers costume” Sleek mutant costume—use frosty makeup/blue highlights and a leather jacket; works well for group X‑Men themes.
Igor fictional — classic horror archetype tattered lab coat, hunched shoulder padding, cap, grim makeup, gloves “Igor costume, mad scientist assistant costume, hunchback helper” Simple, recognizable gothic-humor costume; pack-and-play from thrift stores with makeup and a stooped posture.
Ichabod Crane fictional — Sleepy Hollow long coat, tricorn or tall hat, cravat, waistcoat, breeches “Ichabod Crane costume, Sleepy Hollow costume men, Ichabod Halloween” Period spooky protagonist—great for gothic Halloween; layered vintage pieces sell the 18th-century look.
Inigo Montoya fictional — The Princess Bride embroidered vest/tunic, boots, sword/rapier, sash, wig/moustache “Inigo Montoya costume, Princess Bride cosplay, I want my father back line” Fan-favorite swashbuckler—easy cosplay with a tunic, sword and the iconic line for roleplay.
Inspector Gadget fictional — cartoon beige trench coat, fedora, tie, gadget props (toy arms), gloves “Inspector Gadget costume, cartoon detective costume, extendable arm prop” Playful techy detective costume—assemble a coat and hat, add homemade gadget arms for laughs.
Invisible Man fictional — H. G. Wells / Universal head bandages/scarf, sunglasses, trench coat, gloves, suit “Invisible Man costume, bandaged face costume, classic horror invisible” Classic horror look that reads immediately—bandages and trench coat are cheap but effective for Halloween.
Iron Fist fictional — Marvel yellow mask/hood, green martial-arts jacket or bodysuit, dragon chest symbol, gloves “Iron Fist costume, Danny Rand cosplay, Marvel kung fu hero” Martial-arts superhero that translates well to simple cosplay—green/yellow color scheme and a painted dragon emblem do most of the work.
Iron Giant fictional — animated film metallic silver jumpsuit or armor, robot helmet/mask, red heart or glowing chest “Iron Giant costume, robot costume men, giant robot cosplay” Charming oversized-robot costume—use foam or metallic fabric for a recognizable family-friendly cosplay.
Immortan Joe fictional — Mad Max: Fury Road breathing mask, harness/straps, leather armor, white face paint, cape “Immortan Joe costume, Mad Max villain cosplay, war rig leader costume” Intense, cinematic look for fans—mask and chest harness are the defining pieces for this post-apocalyptic warlord.
Ice King fictional — Adventure Time blue robe, long white beard, crown, blue face paint, scepter “Ice King costume, Adventure Time cosplay, Simon Petrikov costume” Whimsical, cartoonish costume—robe and crown with blue makeup make the character instantly recognizable.
Icarus mythological — Greek myth feathered wings, short tunic, leather sandals, laurel headband “Icarus costume, Greek myth costume, wings DIY costume” Mythic and dramatic; wings are the showpiece—use foam or feathers and a simple tunic for an authentically ancient look.
Ice Hockey Player occupation/sport team jersey, helmet or visor, hockey stick, padded pants, skates or skate props “ice hockey player costume, hockey jersey Halloween, goalie costume men” Sporty, comfortable costume—borrow a jersey and stick for a last-minute outfit that reads instantly at parties.
Ice Skater occupation/sport fitted skating outfit or sweater, tights or trousers, skates, gloves “ice skater costume men, figure skater costume, Halloween skate costume” Clean, athletic look—men can go for classic competition jackets or vintage-inspired ensembles with rented skates.
Iron Chef fictional — TV show chef coat, headband or toque, knife prop, apron, plating prop “Iron Chef costume, chef cosplay, culinary competition costume men” Pop-culture chef costume—easy to assemble and great for foodie-themed parties or group costumes.
Irish Leprechaun folklore — Leprechaun green coat/vest, top hat, buckled shoes, fake beard, pot-of-gold prop “leprechaun costume men, Irish leprechaun Halloween, St Patrick costume” Fun, festive costume for St. Patrick’s or Halloween—avoid caricature and focus on playful folklore styling.
ICE Agent occupation — Immigration/Customs Enforcement tactical vest with ICE patch, badge, black uniform, handcuffs, radio prop “ICE agent costume, DEA agent costume, law enforcement Halloween” Law-enforcement costume option—realistic tactical gear sells it, but be mindful of political context at events.
It (Pennywise) fictional — Stephen King / film Victorian clown suit, white face makeup, red wig, red balloon, prosthetic teeth “Pennywise costume, It clown costume, Stephen King clown outfit” Horror-icon costume—makeup and the red balloon are instantly associated; choose high-quality mask or makeup for scary effect.
Ichigo Kurosaki fictional — Bleach (anime) black shihakusho robe or jacket, orange wig, katana (zanpakuto), tabi-style boots “Ichigo cosplay, Bleach costume, anime sword cosplay” Popular anime cosplay—recognizable silhouette with the black robe and large sword; wig color completes the look.
Uncle Iroh fictional — Avatar: The Last Airbender Earth-toned robe, tea cup prop, short beard wig, monk-style boots “Uncle Iroh costume, Avatar cosplay, tea-loving Iroh outfit” Warm, beloved character—comfortable robes and a tea cup convey the role without complex armor or makeup.
Inspector Clouseau fictional — The Pink Panther trench coat, fedora, fake mustache, magnifying glass, suit “Inspector Clouseau costume, Pink Panther costume, bumbling detective outfit” Comedy-detective costume—mustache and exaggerated mannerisms sell the character; perfect for playful skits.
Italian Mobster historical/fictional — 1920s gangster pinstripe suit, fedora, tie, toy Tommy gun or cigar prop, pocket watch “Italian mobster costume, 1920s gangster costume men, Godfather costume” Classic prohibition-era look—stylish and masculine; use tailored suit and accessories for authenticity, avoid offensive stereotypes.
Imperial Officer (Star Wars) fictional — Star Wars gray officer uniform or jumpsuit, cap, rank badge, black boots “Imperial officer costume, Star Wars officer cosplay, Empire uniform” Clean, authoritative costume that’s simple to assemble—great for Star Wars group themes and easy sourcing from suppliers.
Iceman (Top Gun) fictional — Top Gun call sign bomber jacket with patches, aviator sunglasses, flight suit, pilot helmet, dog tags “Iceman Top Gun costume, fighter pilot costume, aviator jacket Halloween” Straightforward, masculine costume—bomber jacket and aviators give an instantly ’80s fighter-pilot vibe.
Ice Cream Man occupation — vendor vendor shirt or polo, apron, ice cream cart prop or cone, cap, nametag “ice cream man costume, vendor Halloween costume, novelty dessert seller” Playful and approachable—great for lighthearted parties; a prop cart or colorful cones complete the gimmick.
Iron Patriot fictional — Marvel red/white/blue armor or chest piece, helmet, star emblem, gloves “Iron Patriot costume, Marvel armor cosplay, patriotic Iron Man” Patriotic armor variant—meshes superhero appeal with striking colors; chest emblem and helmet make it clear at a glance.
Inuyasha fictional — anime/manga red kimono-style coat, white wig with dog ears, prayer beads, sword prop (Tessaiga) “Inuyasha cosplay, anime demon half-dog costume, Inuyasha Halloween” Iconic anime hero—bold red robe and ears are the focal points; great for conventions and cosplay.
Ivan Drago fictional — Rocky IV boxing trunks, robe or tracksuit, boxing gloves, training boots “Ivan Drago costume, Rocky villain costume, Soviet boxer outfit” Recognizable antagonist—minimal pieces needed for an effective boxing-ring look; great for gym-themed parties.
Innkeeper (medieval) historical/archetype — medieval occupation simple tunic or vest, apron, tankard prop, cap, pouch “medieval innkeeper costume, Renaissance faire innkeeper, tavern keeper outfit” Versatile period costume for fairs or themed parties—layered medieval pieces and a mug create an instant tavern persona.

Descriptions

Indiana Jones
Iron Man
Iceman (X-Men)
Igor
Ichabod Crane
Inigo Montoya
Inspector Gadget
Invisible Man
Iron Fist
Iron Giant
Immortan Joe
Ice King
Icarus
Ice Hockey Player
Ice Skater
Iron Chef
Irish Leprechaun
ICE Agent
It (Pennywise)
Ichigo Kurosaki
Uncle Iroh
Inspector Clouseau
Italian Mobster
Imperial Officer (Star Wars)
Iceman (Top Gun)
Ice Cream Man
Iron Patriot
Inuyasha
Ivan Drago
Innkeeper (medieval)
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