Season 3 (DC's Legends of Tomorrow)

The third season of premiered on October 10, 2017 on The CW and concluded on April 9, 2018. The season consisted of 18 episodes.

Main cast

 * Victor Garber as Professor Martin Stein/Firestorm and Sir Henry Stein
 * Brandon Routh as Dr. Ray Palmer/The Atom
 * Caity Lotz as Captain Sara Lance/White Canary
 * Franz Drameh as Jefferson "Jax" Jackson/Firestorm
 * Maisie Richardson-Sellers as Amaya Jiwe/Vixen
 * Amy Louise Pemberton as Gideon
 * Tala Ashe as Zari Tomaz
 * Keiynan Lonsdale as Wally West/Kid Flash
 * Nick Zano as Dr. Nate Heywood/Steel
 * Dominic Purcell as Mick Rory/Heat Wave

Recurring cast

 * Arthur Darvill as Director/Agent Rip Hunter
 * Chris Carson as Alan
 * Simon Merrells as Julius Caesar
 * Jes Macallan as Agent/Director Ava Sharpe
 * Hiro Kanagawa as Director Wilbur Bennett
 * Adam Tsekhman as Agent Gary Green
 * Christina Brucato as Dr. Lily Stein
 * Tracy Ifeachor as Kuasa
 * Courtney Ford as Nora Darhk and Mallus (possessing Nora Darhk)
 * John Noble as Mallus (voice), Denethor and John Noble
 * Neal McDonough as Damien Darhk
 * Bar Paly as Helen of Troy
 * Daniel Cudmore as Grodd (uncredited)
 * David Sobolov as Grodd (voice)
 * Wentworth Miller as Leo Snart
 * Katia Winter as Freydís
 * Ben Diskin as Beebo (voice)
 * Matt Ryan as John Constantine
 * Jonathan Cake as Edward Teach

Synopsis
After the defeat of Eobard Thawne and his equally nefarious Legion of Doom, the Legends face a new threat created by their actions at the end of last season. In revisiting a moment in time that they had already participated in, they have essentially fractured the timeline and created anachronisms – a scattering of people, animals, and objects all across time! Our team must find a way to return all the anachronisms to their original timelines before the time stream falls apart. But before our Legends can jump back into action, Rip Hunter and his newly established Time Bureau call their methods into question. With the Time Bureau effectively the new sheriffs in town, the Legends disband – until Mick Rory discovers one of them in the middle of his well-deserved vacation in Aruba. Seeing this as an opportunity to continue their time traveling heroics, Sara wastes no time in getting the Legends back together.

We reunite with billionaire inventor Ray Palmer, the unconventional historian-turned-superhero Nate Heywood, and Professor Martin Stein and Jefferson "Jax" Jackson, who together form the meta-human Firestorm. Once reunited, the Legends will challenge the Time Bureau's authority over the timeline and insist that however messy their methods may be, some problems are beyond the Bureau's capabilities. Some problems can only be fixed by Legends.

Trivia

 * Victor Garber is only credited for the episodes he appears in.