Legend = Main cast (credited) = Recurring cast (4+) = Guest cast (1-3) See more

Martin Stein / Firestorm
Professor Martin Stein (portrayed by Victor Garber as an adult; main: seasons 1–3; guest: season 7) (portrayed by Graeme McComb as a young man; … See more

This is a list of recurring actors and the characters they portrayed in multiple episodes, which were significant roles. The characters are listed by the order in which they first appeared. See more

The following is a supplementary list of guest stars, some recurring, who appear in lesser roles. The characters are listed in the order in which they first appeared.
Introduced in … See more

• List of Arrow characters
• List of The Flash characters
• List of Supergirl characters
• List of Arrowverse actors See more

• Full cast and crew of Legends of Tomorrow at IMDb See more