The Snart family is getting a little bigger.

The CW's The Flash has cast veteran actor Michael Ironside as Lewis Snart, The Hollywood Reporter has learned. He is the estranged, abusive father of villains Leonard Snart/Captain Cold (Wentworth Miller) and Lisa Snart/Golden Glider (Peyton List).

The apple doesn't fall far from the tree, as Lewis is described as a cold-blooded, ruthless career criminal. Recently released from prison, he returns to Central City with a plan that will endanger both of his children. In the comics, not much is known about the Snart patriarch other than the fact that he was so abusive to his son — the future Captain Cold — that the boy spent more time with his grandfather who ran an ice truck.

See more 'The Flash': Every Major DC Character on The CW Series

Ironside will guest-star in episode 203, entitled "Family of Rogues." Miller and List will also be in the episode as their villainous alter egos.

Ironside is recognizable from numerous film credits, including Top Gun, Starship Troopers and Total Recall. He's also stepped into the comic book world before, voicing characters in animated versions of Batman, Superman, Justice League and Wolverine and the X-Men. He also played Lois Lane's father in three episodes of Smallville.

The Flash is poised to introduce a world's worth of heroes and villains in season two, which will delve into the mythos of DC Comics' Earth-Two — an alternate world featuring different characters. Miller's Captain Cold will appear in Arrow/The Flash spinoff Legends of Tomorrow, which is set to premiere early next year. At Comic-Con, the producers said the first few episodes of Arrow and The Flash this season would help put the characters from the spinoff in play to make them available for Legends.

Ironside is repped by Abrams Artists Agency and Insight.

The Flash returns for season two Oct. 6 on The CW at 8 p.m.