By Natalie Abrams
November 25, 2014 at 06:20 PM EST

Shameless star Justin Chatwin and True Blood alum James Frain have joined the cast of Orphan Black.

Chatwin, whose casting was first teased on Twitter, will play the recurring role of Jason Kellerman, a ruggedly handsome and savvy drug dealer who is also a charismatic businessman.

Frain, meanwhile, will guest-star as Ferdinand, a well-educated “cleaner,” who is both charming and intimidating. Ferdinand is a power player in a secret political faction that operates under questionable ethics. Earl Pastko (Murdoch Mysteries) will play Bulldog, Derdinand’s silent yet imposing bodyguard who carries out his dirty work.

Black Swan’s Ksenia Solo and Warehouse 13’s Kyra Harper have also joined the vast. Solo will play a holistic healer destined to become a new friend to Cosima (Tatiana Maslany), while Harper will play Dr. Coady, a ruthless advisor to the military.

The third season of Orphan Black will debut next year.