Newcomer Dominique Columbus has signed on for a recurring role on the fourth season of Showtime drama series Ray Donovan. He’ll play Damon, described as a street-smart, homeless teen who packs a mean punch and becomes involved with the Donovan family. Ray Donovan stars Liev Schreiber as LA’s best professional fixer, the man called in to make the city’s celebrities, superstar athletes and business moguls’ most complicated and combustible situations go away. Columbus can be seen in upcoming features Nine Rides, which premieres at next month’s SXSW, and In Extremis. He’s repped by Pantheon and Discover Management.

Shaun Toub has booked a recurring role on NBC’s supernatural cop drama Grimm. Toub will play Bonaparte, closing out the fifth season in a multi-episode arc. Bonaparte neither thinks nor behaves like a villain; he is passionate, committed, powerful, on the right side of history. Best known for his roles on features Crash and Iron Man, and Showtime’s Homeland, Toub will be seen later this year in a supporting role in Warner Bros.’ Arms And The Dudes. He’s repped by Abrams Artists Agency.