The Koopa Clan is Bowser's personal army, consisting not only of Koopas, but of countless other creatures and foes as well. They all play their part in assisting Bowser's efforts to take over various lands—mainly the Mushroom Kingdom—and standing in the way of Mario and his allies during their quests, showing admirable devotion to their leader and his motives.
High-ranking members
- Bowser
- Kamek
- Kammy Koopa
- Bowser Jr.
Koopa Bosses
- Larry Koopa
- Lemmy Koopa
- Iggy Koopa
- Wendy O. Koopa
- Morton Koopa Jr.
- Roy Koopa
- Ludwig von Koopa
- Dry Bowser
- Blue Bowser
- King Koopa
- Paper Bowser
- Army Hammer Bro.
- Baron Brrr
- Bessie Bass
- Big Bully
- Big Bully (Snowmen's Land)
- Big Bungee Piranha
- Big Guy the Stilted
- Bigger Boo
- Boom Boom
- Boss Brolder
- Boss Sumo Bro.
- Bouldergeist
- Bugaboom
- Burt the Bashful
- Cheepskipper
- Chief Chilly
- Corporal Paraplonk
- Dino Piranha
- Fiery Dino Piranha
- General Guy
- Giga Lakitu
- Goomba Bros.
- Goomboss
- Gooper Blooper
- Hissocrat
- Hookbill the Koopa
- Huff 'n Puff
- Kamella
- King Bob-omb
- King Boo
- King Kalinate
- King Ka-Thunk
- Koopa Bros.
- Koopa Kid
- Koopa Kid Trio
- Lakithunder
- Lava Piranha
- Marching Milde
- Major Burrows
- Motley Bossblob
- Mummipokey
- Naval Piranha
- Peewee Piranha
- Petey Piranha
- Pom Pom
- Prince Bully
- Prince Pikate
- Private Goomba
- Reznor
- Rollodillo
- Salvo the Slime
- Sergeant Guy
- Sluggy the Unshaven
- Tap-Tap the Golden
- Topmanic
- Undergrunt Gunner
- Whomp King
Minions
Goombas
- Goomba
- Paragoomba
- Spiked Goomba
- Goombeetle
- Bone Goomba
- Jack O' Goomba
- Galoomba
- Winged Galoomba
- Goombrat
Koopas
- Koopa Troopa
- Koopa Paratroopa
- Spike Koopa
- Super Koopa
- Eletico-Koopa
- Terrapin
- Terra Cotta
- Koopatrol
- Koopa Striker
- Chargin' Chuck
- Mecha-Koopa
Dry Bones
- Dry Bones
- Parabones
Hammer Bros
- Hammer Bro
- Amazing Flyin' Hammer Brother
- Boomerang Bro
- Fire Bro
- Ice Bro
- Sledge Bro
- Sumo Bro
- Chomp Bro
Magikoopas
- Magikoopa
- Red Magikoopa
- Green Magikoopa
- Yellow Magikoopa
- Purple Magikoopa
- White Magikoopa
- Grey Magikoopa
- Toady
Lakitus
- Lakitu
- Fishin' Lakitu
- Aqua Lakitu
- Thunder Lakitu
- Fishin' Boo
Spiny & Buzzy Beetles
- Spiny
- Buzzy Beetle
- Spike Top
- Bony Beetle
- Buster Beetle
Spikes
- Spike
- Snow Spike
- Stone Spike
- Clubba
Shy Guys
- Shy Guy
- Stilt Guy
- Fly Guy
- Boo Guy
- Pyro Guy
- Rocket Guy
- Boom Guy
- Elite Boom Guy
- Spy Guy
- Sky Guy
- Snifit
- Snufit
- Grunt
- Green Glove
- Slugger
Piranha Plants
- Piranha Plant
- Fire Piranha Plant
- Ice Piranha Plant
- Frost Piranha
- Putrid Piranha
- Bone Piranha Plant
- Inky Piranha Plant
- Spiky Piranha Plant
- Prickly Piranha Plant
- Nipper Plant
- Fire Nipper Plant
- Ptooie
- Muncher
- Jumping Piranha Plant
- Fire Jumping Piranha Plant
Thwomps
- Thwomp
- Thwimp
- Whomp
- Whimp
- Grrrol
Chain Chomps
- Chain Chomp
- Flame Chomp
- Chomp Shark
Boos
- Boo
- Big Boo
- Booethmoth
- Bomb Boo
- Boo Man Bluff
- Boo Balloon
- Balloon Boo
Bullet Bills
- Bullet Bill
- Banzai Bill
- King Bill
- Bouncing Bullet Bill
- Bombshell Bill
- Torpedo Ted
Monty Moles
- Monty Mole
- Mega Mole
- Morty Mole
- Rocky Wrench
- Undergrunt
Bob-ombs
- Bob-omb
- Kab-omb
Octoombas
- Octoomba
- Octoguy
- Octoboo
- Elite Octoomba
Cheep-Cheeps
- Cheep-Cheep
- Spiny Cheep-Cheep
- Porcupuffer
- Mecha-Cheep
- Fishbone
Blarggs
- Blargg
- Gargantua Blargg
- Magmaargh
- Magmaw
- Charvaargh
- Sandmarrgh
Others
- Amp
- Eerie
- Mr. I
- Mad Piano
- Bookend
- Milde
- Tap-Tap
- Rex
- Draglet
- Dino Rhino
- Dino-Torch
- Burt
- Fizzlit
- Bully
- Prongo
- Hot Foot
- I'll Sparky
- Hot Head
- Ninji
- Brolder
- Ka-Thunk
- Chuckya
- Slime Drop
- Lava Drop
- Lava Bubble
- Heave-Ho
- Blooper
- Swooper
- Fang
- Skeleton Goonie
- Flightless Skeleton Goonie
- Crowber
- Broozer
- Lantern Ghost
- Biddybud
- Parabiddybud
- Wallop
- Walleye
- Madpole
- Peepa
- Moneybags
- Coin Coffer
- Spunkin
- Block-a-blok
- Snailicorn
- Kaboomba
- Harry Hedgehog
- Blockstepper
- Topmen
- Sherm