The Hunting Party marks Eric McCormack's first onscreen role opposite son Finnigan - although neither of them expected to share a serial killer character. "I think if you'd asked either of us if we can be in something together, we probably wouldn't have said, 'Oh, let's play the same serial killer,'" Eric, 62, exclusively told Us Weekly before the season 2 premiere on Thursday, January 8. The duo enjoyed the challenge. "I don't think that would have been the answer, but it wasn't our idea," Eric continued.