- "What's Her Face"
- -Inator Machines
- 26
- 26's Friends
- 4 Gangsters
- 5.0.5
- 999 Happy Haunts
- A.I.M.
- A.I.M. Soldiers
- A.R.G.U.S.
- A.U.T.O.
- AM
- ARX-7 Arbalest
- AT-ATs
- Aang
- Aaron
- Abaddon
- Aban Khan
- Abandonded Opal Mine
- Abel
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- Abomination
- Abra Kadabra
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- Abu
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- Adam
- Adam DeCobray
- Adam Sutler
- Adamaï
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- Adolf Hitler (Disney)
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- Adults (Yin Yang Yo!)
- Adventure
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- Agent 9
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- Aguanoggin
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- Aikuro Mikisugi
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- Airachnid
- Aisling
- Ajax
- Akakabuto
- Akamimi
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- Akatora, Chutora and Kurotora
- Akihiro Kurata
- Akima Kunimoto
- Akira Fudo
- Aku
- Aku Aku
- Al-Muddy
- Al Arbuckle
- Al Capone
- Al Gatone
- Al McWhiggin
- Aladar
- Aladdin
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- Alameda Slim
- Alamut
- Alastor
- Albert Wesker
- Albertosaurus
- Alcatraz Prison
- Aldarn
- Aldrin Klordane
- Alduin
- Alec Trevelyan
- Alera, Verona and Marishka
- Alessa Gillespie
- Alex DeLarge
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- Alex Wilde
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- Alfred's School
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- Alfred J. Kwak
- Algrim the Kurse
- Ali Cat
- Alice
- Alice Angel
- Alicia Masters
- Alien Children
- Aliens (Bolt)
- Aliens (Chicken Little)
- Alisha Diphda
- Alistair Smythe
- Alister Azimuth
- Alita Forland
- All-Star Villains Tournament
- All-Star Villains vs. Worst Villains
- All Out Heroes vs Villains War
- All star villains war
- Allan Quartermain
- Allan Thompson
- Alley Dogs
- Alligator (Highlander: The Search for Vengeance)
- Alligator (Justice League Doom)
- Alligators (The Princess and the Frog)
- Alligators (The Thief and the Cobbler)
- Allison
- Allosaurus
- Allosaurus (Dino Crisis)
- Allosaurus (Paraworld)
- Alonzo
- Alpha
- Alpha (Up)
- Alphonse Elric
- Altivo
- Alto Angelos
- Alucard
- Amal
- Amalgam
- Amalia Sheran
- Amanda Waller
- Amanda Waller's Soldiers
- Amanra
- Amber Sweet Largo
- Amestris
- Amethyst
- Amin Damoola
- Ammonia Pine
- Ammut the Devourer
- Amok Mon Ra
- Amon
- Amon (Devilman)
- Amon Goeth
- Amos Slade
- Amos Slade's Traps
- Amphonids
- Amy Rose
- Ana and Yuna
- Anaheim
- Anakaris
- Anansi
- Anastasia Romanov
- Anastasia Tremaine
- Ancient Dragon
- Ancient Minister
- Ancient Ruins
- Ancient Spirits of Evil
- Ancient Temple
- Anck Su Namun
- Andalasia
- Andalasia Castle
- Andrew Oikonny
- Andrew Ryan
- Andrew Scoot
- Andrey Kalinin
- Android 14
- Android 15
- Android 17
- Android 18
- Android 19
- Andross
- Andy's Brother (Alfred J. Kwak)
- Andy's House
- Andy's Toys
- Andy (Alfred J. Kwak)
- Andy Bogard
- Angel
- Angel Gabriel
- Angelica
- Angelica Pickles
- Angels
- Angemon
- Angewomon
- Angry Mob (Animal Farm)
- Angus
- Angus MacBadger
- Animal Farm
- Animal Heroes vs Villains
- Animated Heroes vs Villains
- Animated Universe
- Animated Villains vs. Video Game Villains
- Animated Villains vs Comic Book Villains
- Animated vs CGI Villains War
- Animatronic Hook
- Anime Heroes Vs Disney Villains
- Anime Heroes vs. Villains
- Anime Villains War
- Anime Villains vs Cuphead Bosses
- Anita Radcliffe
- Ankylosaurus (Turok: Son of Stone)
- Ann Possible
- Anna
- Anna Aoi
- Anna Williams
- Anne-Marie
- Anne Lewis
- Annie Hughes
- Annie Wilkes
- Annie and Oakley
- Annihilus
- Annoying Orange and Spongebob Heroes vs. Disney and Non Disney Villains
- Annuvin
- Ansem
- Ant-Man
- Ant Island
- Antaeus
- Antauri
- Anthony Cole
- Anthony Romulus
- Anti-Acolytes
- Anti-Music Missile
- Anti-Sora
- Antlion
- Antoine Depardieu
- Anton Chigurh
- Anton Sevarius
- Anton Sevarius' Men
- Ants
- Anubis
- Anubis (Stargate SG-1)
- Anubis (Tutenstein)
- Anubis (Yu-Gi-Oh!)
- Anubis Jewels
- Aparoid Queen
- Apatosaurus (Fantasia)
- Apatosaurus (The Land Before Time)
- Ape Soldiers
- Apep
- Apes
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- Apocalymon
- Apocalypse
- Apokolips
- Apollo
- Apollo (Saint Seiya)
- Appa
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- Applejack
- April Franklin
- April O'Neil
- Aqua
- Aquamarine
- Arabian Peninsula
- Arachnid
- Arachnids
- Aracuan Bird
- Aracula
- Aragh
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- Arakacians
- Aramis
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- Arburtus
- Arch Demons
- Arch Druid
- Archangel
- Archibald Snatcher
- Archimedes
- Archmage
- Arclight
- Arctic Ocean
- Area 51
- Arendelle
- Arendelle's Citizens
- Arendelle Castle
- Ares
- Ares (DC)
- Ares (God of War)
- Argus
- Ariel
- Arkantos
- Arkantos's Warriors
- Arkham Asylum
- Arkham City
- Arktos
- Arktos' Forces
- Arles of Gemini
- Arlo
- Arm Slaves
- Armageddemon
- Armand Sheran Sharm
- Armed Priest Corps
- Armoured Cards
- Armoured Chess Pieces
- Army-Dillo
- Army of Nockmaar
- Army of Skeleton Warriors
- Army of Tywin Lannister
- Army of the Undead
- Arnim Zola
- Arpeggio
- Arrow (The Point)
- Artemis
- Artemus Bradford
- Arthas Menethil
- Arthrosians
- Arthur
- Arthur (Starchaser: The Legend of Orin)
- Artichoke
- Articuno
- Artilla and Helicos
- Arukenimon
- Asajj Ventress
- Asami Sato
- Asgard
- Asgardians Soldiers
- Ash Ketchum
- Ashelin
- Asia
- Aslan
- Aslan's How
- Assassins Guild
- Asterix
- Astronema
- Asuka Langley Sohryu
- Asuramon
- Athanasius
- Athena
- Athena (Age of Mythology)
- Athena (God of War)
- Athena (Mission Odyssey)
- Athens
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