The con man "dad" on Psych is played by Henry Winkler.
Shatner played Juliet's dad on the show. That character was a con-man.
Shawn, the main character uses the psychic con to get work with the police, but he actually does solve crimes, and isn't ripping folks off. His dad on the show is played by Corbin Bersen.
I don't think Henry Winkler's ever had a gig on the show.
No, that's not Psych, that's NCIS.
And that's not Henry Winkler, it's Robert Wagner.