Michael Ironside has been cast as Lewis Snart the father of Captain Cold according to The Hollywood Reporter. Seems like he’s going to be a force to be reckoned with according to their description below.
“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.” their report mentioned.
“The Flash” season 2 premieres on October 6th.