Who better to play a werewolf's father than a Terminator, right?
TV Guide reports that Robert Patrick (Terminator 2, The X-Files, and many, many more credits) is joining the cast as Jackson Herveaux, Alcide's father.
Jackson will be first seen in episode 9 on Aug. 5 in a flashback to Alcide and Debbie's teenage years, when Alcide still respected him. In the present day, Papa Herveaux has "given up on life."
Source: TV Guide