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, Rebecca Black and Chuck Norris because they are real life people, Segata Sanshiro because he is from advertisements and Smokey Bear and McGruff the Crime Dog because they are from PSA's), They are listed by the following series in Death Battle episode order.

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

Combatants by Series
Star Wars: Boba Fett, Luke Skywalker, Darth Vader

Metroid: Samus Aran*

Street Fighter: Akuma, Zangief, Chun-Li, Blanka, M. Bison, Ryu, Dan Hibiki, Cammy White, Ken Masters, Balrog

Mortal Kombat: Shang Tsung, Raiden, Shao Kahn, Sektor, Scorpion, Sonya Blade, Sub-Zero

Marvel Comics: Rogue, Thor, Spider-Man, Captain America, Deadpool*, Iron Man, Beast, Doctor Doom, Wolverine, Hawkeye, Quicksilver, The Hulk, Venom, Captain Marvel, Silver Samurai, Spider-Man 2099**

DC Comics: Wonder Woman, Batman, Superman*, Deathstroke, Lex Luthor, Green Arrow, The Flash, The Joker, Doomsday, Bane, Batman Beyond**

Super Mario: Goomba, Koopa Troopa, Yoshi, Mario, Princess Peach, Luigi, Donkey Kong, Bowser

Final Fight: Mike Haggar

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

Battletoads: Zitz

Killer Instinct: Riptor, Black Orchid, Fulgore, Glacius, TJ Combo

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, Hercule Satan, Android 18

Sonic the Hedgehog: Shadow the Hedgehog, Sonic the Hedgehog, Dr. Eggman, Metal Sonic, Tails, Knuckles the Echidna, Amy Rose

Harry Potter: Harry Potter

King of Fighters: Mai Shiranui, Terry Bogard

Transformers: Starscream

My Little Pony: Rainbow Dash, Pinkie Pie

Halo: Master Chief

Doom: Doomguy

Mega Man: Dr. Wily, Mega Man, Zero

The Legend of Zelda: Princess Zelda, Link, Ganondorf

Final Fantasy: Cloud Strife, Tifa Lockhart

Pokémon: Pikachu, Venusaur, Blastoise, Charizard, Red, Mewtwo, Lucario

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

ThunderCats: Lion-O

Ninja Gaiden/Dead or Alive: Ryu Hayabusa

Strider: Strider Hiryu

Soulcalibur: Ivy Valentine, Nightmare

Star Fox: Fox McCloud

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

The Terminator: The Terminator

RoboCop: RoboCop

Godzilla: Godzilla

Gamera: Gamera

Mighty Morphin' Power Rangers: Tigerzord, Mighty Morphin Power Rangers

Gundam: Gundam Epyon

Kirby: Kirby

Guilty Gear: Sol Badguy

Naruto: Gaara, Naruto Uzumaki

Avatar: The Last Airbender/The Legend of Korra: Toph Beifong

Berserk: Guts

Gargoyles: Goliath

Metal Gear: Solid Snake, Raiden 

Tom Clancy's Splinter Cell: Sam Fisher

RWBY: Yang Xiao Long

Astro Boy: Astro Boy

Digimon: Agumon, Tai, Renamon

Devil May Cry: Dante

Bayonetta: Bayonetta

Ratchet & Clank: Ratchet & Clank

Jak & Daxter: Jak & Daxter

Twisted Metal: Sweet Tooth

Red vs. Blue: The Meta, Agent Carolina

Overwatch: Tracer

Team Fortress 2: The Scout

Scott Pilgrim: Ramona Flowers

One Piece: Roronoa Zoro, Portgas D. Ace

Fairy Tail: Erza Scarlet, Natsu Dragneel

Tomb Raider: Lara Croft

Uncharted: Nathan Drake

Disney Comics: Scrooge McDuck

Shovel Knight: Shovel Knight

Voltron: Voltron Lion Force

Bleach: Ichigo Kurosaki

Trivia

 * When it comes to the series with the most number of Death Battle victors, it is currently known to be Marvel Comics with Rogue, Thor, Spider-Man, Deadpool, Iron Man, Doctor Doom, Hawkeye and Venom.
 * DC Comics holds the record for the second most Death Battle champions from a series with 5 winners (Superman, Batman, The Flash, The Joker, Doomsday and Wonder Woman).
 * When it comes to the series with the highest number of Death Battle losers, it is currently Marvel Comics, with both series having 8 losers (Captain America, Beast, Wolverine, Quicksilver, The Hulk, Captain Marvel, Silver Samurai and Thor).
 * Street Fighter has the second highest number of Death Battle losers with 7 losers (Chun-Li, M. Bison, Ryu, Dan Hibiki, Cammy White, Ken Masters and Balrog).
 * DC Comics has the third highest number of Death Battle losers with 6 losers (Wonder Woman, Batman, Deathstroke, Lex Luthor, Green Arrow, and Bane).
 * Super Mario holds the record for the fourth highest number of Death Battle losers with 5 loser (Goomba, Koopa Troopa, Mario, Luigi, and Bowser).
 * When it comes to the series with the highest number of combatants (winners and losers combined), this distinction goes to Marvel Comics with sixteen (Rogue, Thor, Spider-Man, Captain America, Deadpool, Iron Man, Beast, Doctor Doom, Wolverine, Hawkeye, Quicksilver, The Hulk, Venom, Captain Marvel, Silver Samurai and Spider-Man 2099).
 * The DC Comics holds the record for second highest number of combatants in the series with eleven (Wonder Woman, Batman, Superman, Deathstroke, Lex Luthor, Green Arrow, The Flash, The Joker, Doomsday, Bane and Batman Beyond).
 * So far, there are six series that have been represented in every single season of Death Battle: Street Fighter, Mortal Kombat, Marvel Comics, DC Comics, Sonic the Hedgehog and Pokémon.
 * Marvel was undefeated until Batman VS Captain America, but starts again with Deadpool VS Deathstroke. Marvel's winning streak was ended again with Beast VS Goliath.
 * 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, Donkey Kong VS Knuckles and Bowser VS Ganon).
 * Until Beast VS Goliath after Iron Man VS Lex Luthor, Marvel's combatants had yet to face a single combatant outside of Warner Bros.
 * Raiden wasn't from DC comics, but he was from Warner Bros. just as DC was.
 * So far, 25 of the combatants' home series does not have a winner yet (Final Fight, Battletoads, Darkstalkers, God of War, Bomberman, Harry Potter, Transformers, Doom, Final Fantasy, ThunderCats, Ninja Gaiden, Soulcalibur, Bucky O'Hare and the Toad Wars, The Terminator, Gamera, Mighty Morphin' Power Rangers, Tom Clancy's Splinter Cell, Bayonetta, Jak & Daxter, Twisted Metal, Team Fortress 2, Scott Pilgrim, Uncharted, Shovel Knight and Bleach)
 * Of the 25, Final Fantasy, Soulcalibur and Mighty Morphin' Power Rangers are the only series to have more than one battle regarding the series.
 * Super Mario, Mortal Kombat, DC and Mega Man also had two losers (Super Mario in one battle) until Yoshi VS Riptor, Shao Kahn VS M. Bison, Goku VS Superman and Metal Sonic VS Zero.
 * So far, 26 of the combatants' home series does not have a loser yet (Metroid, Spawn, Dig Dug, Fatal Fury, My Little Pony, Halo, He-Man and the Masters of the Universe, Strider, Star Fox, Robocop, Godzilla, Gundam, Kirby, Guilty Gear, Avatar: The Last Airbender, Berserk, Gargoyles, Metal Gear, RWBY, Astro Boy, Devil May Cry, Ratchet and Clank, Overwatch, Tomb Raider, Disney Comics and Voltron)
 * Of the 26, Fatal Fury, My Little Pony and Metal Gear are the only series to have more than one battle regarding the series.
 * Street Fighter and Marvel Comics also had multiple winners until Chun-Li VS Mai Shiranui and Batman VS Captain America
 * So far, 19 of the Combatants' Home Series have at least one winner and one loser (Star Wars, Street Fighter, Mortal Kombat, Marvel Comics, DC Comics, Super Mario, Teenage Mutant Ninja Turtles, Killer Instinct, BlazBlue, Dragon Ball Z, Sonic the Hedgehog, Mega Man, Legend of Zelda, Pokémon, Naruto, Digimon, Red vs. Blue, One Piece, and Fairy Tail)