Characters from the DC comics

Below is a list of characters who originally appear in the DC comics multiverse prior to the episode's airing, by appearance.

Arrow
Characters first appearing in Arrow:

Upcoming characters
Notes:


 * 1) Even though Laurel is the actual version of Black Canary in Arrow, Sara Lance/The Canary, who is in part an original character specifically created for the show, is also based on the same character.
 * 2) Even though Malcolm is the actual version of Merlyn in Arrow, Tommy Merlyn, who is in part an original character specifically created for the show, is also based on the same character.
 * 3) Both characters of The Count and Werner Zytle are based in part on the same comic book character, Count Vertigo.
 * 4) Though not being named in the comics, The Dodger is relatively the same, not so much a villain as a thief.
 * 5) In the comics, Isabel is also known as The Queen. Ravager, which is the name she is informally given on the show, is the alter ego of several comic book characters, most of them related to Slade Wilson. The latest to don the moniker of Ravager is Slade's daughter, Rose Wilson, whose costume was the inspiration for Isabel's costume on the show.
 * 6) Sebastian's parents are both based on comic book characters as well. Sebastian Sangre is based in part on Sebastian Blood VIII who is the father of Sebastian Blood IX. Sangre means blood in Spanish. Maya Resik is based in part on Mother Mayhem. Both women who adopted the title, Anna Resik and May Bennett, were mothers of different Sebastian Bloods.
 * 7) Sin's real first name on the show has been revealed to be Cindy with her last name being still unknown. In the comics, her name is Cynthia and she got the surname "Lance" after she got adopted by Black Canary.
 * 8) Steelgrave is seemingly based on a minor Green Arrow foe, Professor Steelgraves (first name unknown), who is also mainly a weapon smuggler (though in the comics Steelgraves mostly fenced stolen high-tech devices).
 * 9) Even though in the comics his first name is unknown, he is based on a character known as Master Jansen who first appeared in Flash #218.

The Flash
Characters first appearing in The Flash:

Upcoming characters

 * Hannibal Bates

Notes:


 * 1) Even though Eobard is the Reverse-Flash in The Flash, Eddie Thawne, who is in part an original character specifically created for the show, is considered to be partly based on the same character, as their names are similar.
 * 2) Even though the character originates from the comics, his last name was never revealed, as he was only known by his first name or his alias. Unlike the comics, on the show he is given a last name as well, Gibran.
 * 3) In the comics, Baez's first name is actually Lashawn but it was changed to Shawna for the show.
 * 4) Brie is a reimagining of the villain known as the Bug-Eyed Bandit, who in the comics is a male and is named Bertram Larvan.

Vixen
Characters first appearing in Vixen:

Upcoming characters

 * Mari McCabe/Vixen (untitled first episode)

Untitled spin-off
Characters first appearing in the untitled spinoff:

Upcoming characters

 * Kendra Saunders/Hawkgirl (untitled first episode)
 * Rip Hunter (untitled first episode)