Combatants' Home Series

Most of the Death Battle combatants are taken from their own home series to be pitted against other combatants (The only exceptions however who are not listed are Justin Bieber and Rebecca Black, because they are real life people), They are listed by the following series in Death Battle episode order.

Note: Bold charcaters are victors, Italic characters means they've fought more than once, characters with '*' symbols next to their name have won more than once and characters two '*' symbols means they have undecided fates (their battle has not been released yet).

Combatants by Series
Star Wars: Boba Fett, Luke Skywalker

Metroid: Samus Aran

Street Fighter: Akuma, Mike Haggar, Zangief, Chun-Li, Blanka, M. Bison, Ryu

Mortal Kombat: Shang Tsung, Raiden, Shao Kahn, Sektor, Scorpion

Marvel Comics: Rogue, Thor, Spiderman, Captain America, Deadpool

DC Comics: Wonder Woman, Batman, Superman, Deathstroke

Super Mario: Goomba, Koopa Troopa, Yoshi, Mario, Princess Peach, Luigi

Teenage Mutant Ninja Turtles: Leonardo*, Donatello, Michelangelo, Raphael

BattleToads: Zitz

Killer Instinct: Riptor, Black Orchid, Fulgore

Darkstalkers: Felicia

BlazBlue: Taokaka, Ragna the Bloodedge**

God of War: Kratos

Spawn: Spawn

Bomberman: Bomberman

Dig Dug: Dig Dug

Dragon Ball Z: Vegeta, Goku, Majin Buu

Sonic the Hedgehog: Shadow the Hedgehog, Sonic the Hedgehog, Dr. Ivo "Eggman" Robotnik, Metal Sonic, Tails the Fox

Harry Potter: Harry Potter

Fatal Fury: Mai Shiranui

Transformers: Starscream

My Little Pony: Rainbow Dash

Halo: Master Chief

Doom: Doomguy

Megaman: Dr. Albert W. Wily

The Legend of Zelda: Princess Zelda, Link

Final Fantasy: Cloud Strife

Pokemon: Pikachu, Venusaur, Blastoise, Charizard

He-Man and the Masters of the Universe: He-Man

ThunderCats: Lion-O

Ninja Gaiden/Dead or Alive: Ryu Hayabusa

Strider: Strider Hiryu

Soulcaliber: Isabella "Ivy" Valentine

StarFox: Fox McCloud

Bucky O' Hare and the Toad Wars: Bucky O' Hare

Terminator: Terminator

RoboCop: RoboCop

Godzilla: Godzilla

Gamera: Gamera

Gundam: Epyon

Mighty Morphin' Power Rangers: Tigerzord

Kirby: Kirby

Guilty Gear: Sol Badguy**

Avatar: The Last Airbender: Toph Beifong**

Combatants by Crossover Series
While the combatants are true to staying in their home series, there have been times that they cross over in other media, like starring in special movies like 'Disney's Wreck-it Ralph', appear in such crossover fighting games like 'Super Smash Bros.' and the varieties of the 'vs. Capcom' series, and even special appearances in primetime animated adult shows like 'The Simpsons' and 'Family Guy', like with their home series, here are the following series that the combatants have crossed over in:

Super Smash Bros.: Samus Aran, Yoshi, Mario, Sonic the Hedgehog, Princess Zelda, Princess Peach, Link, Pikachu, Fox McCloud, Luigi, Charizard, Kirby

Marvel vs Capcom: Akuma, Rogue, Mike Haggar, Zangief, Felicia, Chun-Li, Thor, Spiderman, M. Bison, Strider Hiryu, Captain America, Ryu, Deadpool

Capcom vs SNK: Akuma, Zangief, Felicia, Chun-Li, Mai Shiranui, Blanka, M. Bison

Namco vs Capcom: Akuma, Mike Haggar, Zangief, Felicia, Chun-Li, Blanka, M. Bison, Strider Hiryu

Disney's Wreck-it Ralph: Zangief, Leonardo*, Dig Dug, Sonic the Hedgehog, Chun-Li, Dr. Ivo "Eggman" Robotnik, Blanka, M. Bison, Miles "Tails" Prower

Mortal Kombat vs DC Universe: Shang Tsung, Wonder Woman, Raiden, Batman, Superman, Shao Kahn, Scorpion, Deathstroke

TMNT/Power Rangers crossover: Leonardo*, Donatello, Michelangelo, Raphael

Mario & Sonic at the Olympic Games: Yoshi, Shadow the Hedgehog, Mario, Sonic the Hedgehog, Dr. Ivo "Eggman" Robotnik, Metal Sonic, Princess Peach, Luigi, Miles "Tails" Prower

Playstation All-Stars Battle Royale: Kratos

Soul Calibur: Spawn (Soul Calibur II Xbox version only), Link (Soul Calibur II Gamecube version only), Isabella "Ivy" Valentine, Kratos

Sega All-Stars/Sega Superstars: Shadow the Hedgehog, Sonic the Hedgehog, Dr. Ivo "Eggman" Robotnik, Metal Sonic, Miles "Tails" Prower

Sonic and Mega Man: Worlds Collide: Shadow the Hedgehog, Sonic the Hedgehog, Dr. Ivo "Eggman" Robotnik, Dr. Albert W. Wily, Metal Sonic, Miles "Tails" Prower

Muppet Babies: Mario, Spiderman

Tatsunko vs Capcom: Chun-Li

Project X Zone: Chun-Li

Queen's Gate Spiral Chaos: Mai Shiranui, Isabella “Ivy" Valentine

Phineas and Ferb: Mission Marvel: Thor, Spiderman

Godzilla (Marvel Comics): Thor, Godzilla

Kingdom Hearts: Cloud Strife

Sesame Street: Batman, Superman

Pokemon Conquest: Pikachu, Charizard

Save Our Ship: Leonardo, Donatello, Raphael, Michelangelo

Trivia

 * When it comes to the series with the most number of Death Battle champions, it is currently known to be a 3 way tie between 'Street Fighter', 'Marvel Comics', and 'Sonic the Hedgehog'; each with 3 Death Battle champions (Akuma, Zangief, and Blanka from 'Street Fighter'; Rogue, Thor, and Spiderman from 'Marvel Comics'; and Sonic the Hedgehog, Metal Sonic, and Miles "Tails" Prower from 'Sonic the Hedgehog').


 * When it comes to crossover series with the most Death Battle champions, it is known to be a 3 way tie between 'Super Smash Bros.', 'Marvel vs Capcom' and 'Disney's Wreck-it Ralph'; each with 6 champions (Samus Aran, Yoshi, Sonic the Hedgehog, Princess Peach, Link, and Fox McCloud for 'Super Smash Bros.'; Akuma, Rogue, Zangief, Thor, Spiderman, Strider Hiryu for 'Marvel vs Capcom'; and Zangief, Leonardo, Dig Dug, Sonic the Hedgehog, Blanka, and Miles "Tails" Prower for 'Disney's Wreck-it Ralph'); Ironically, 'Super Smash Bros,' holds 2 more crossover themed records, one for the highest number of loser (made of Mario, Princess Zelda, Pikachu, Luigi, & Charizard), and another for the highest number of combined combatants (made os Samus Aran, Yoshi, Mario, Sonic the Hedgehog, Princess Zelda, Princess Peach, Link, Pikachu, Fox McCloud, Luigi, & Charizard).


 * When it comes to the series with the most number of Death Battle losers, it is a tie between the 'Super Mario' series and 'Street Fighter' series with the deaths of Goomba, Koopa Troopa, Mario and Luigi for Mario series and Mike Haggar, Chun-Li, M. Bison, and Ryu for street fighters.
 * Also, including the series' champions Yoshi & Princess Peach, the 'Super Mario' series also holds the record for the series with the most combatants, winners & losers combined, joining along with 'Street Fighter' who have its 3 winners (Akuma, Zangief, & Blanka) & its 3 losers (Mike Haggar, Chun-Li, M.bison)
 * That was until Ryu participated for Ryu VS Scorpion, making the Street fighters series have the most, with 7 combatants.
 * Marvel was undefeated until Batman vs. Captain America.


 * The Mario series has played host to the most battles (Goomba VS Koopa, Yoshi VS Riptor, Mario VS Sonic, Zelda VS Peach, Luigi VS Tails).
 * So far, all the DC combatants on Death Battle are in Mortal Kombat vs DC Universe.
 * Sektor is the only Mortal kombat combatant on the show to not be in Mortal Kombat vs DC universe