John Hannah, Jenna Elfman John Hannah, Jenna Elfman

Ryan Phillippe isn't the only big name joining the final season of Damages.

John Hannah has signed on for a major recurring role opposite Phillippe, according to The Hollywood Reporter. The Spartacus star will portray Rutger, an advisor to Phillippe's Channing McClaren, a Julian Assange-esque character who turns to Ellen (Rose Byrne) for help.

Damages taps Ryan Phillippe for Season 5

Additionally, Jenna Elfman has joined the cast as an investment banker who is troubled by her company's actions and will turn to McClaren, reports.

Damages is expected to premiere its final season next summer on DirecTV.