A big part of The Flash’s comic book mythology is coming to the CW series in Season 2, as Keiynan Lonsdale has been cast as Wally West. Lonsdale will be a series regular.

In the comics, Wally West not only was The Flash’s sidekick, Kid Flash, but then went on to become The Flash himself for many years. Wally has recently been re-introduced in the New 52 DC Comics. Wally has traditionally been the nephew of Iris West, played by Candice Patton on the series.

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Keiynan Lonsdale will play Wally West in The Flash.

Said Flash executive producer Andrew Kreisberg, “Just like when we met Grant [Gustin] for the first time, we instantly knew Keiynan embodied all the heart and courage of a hero. We are so excited to be bringing this much-beloved character onto the show.”

Australian actor Lonsdale previously appeared in the series Dance Academy and had a role in the Divergent sequel Insurgent, which he’s reprising for the third movie, Allegiant Part 1.

For more on The Flash: Season 2, check out what the cast told us at Comic-Con recently in the interviews below.