John Prosky
John Prosky has had roles in hit show after hit show. It all started when he was Jon Barrow for JAG. Now, most know him from True Blood on HBO where he played David Finch. However, if you’re a fan of Medium, you recognize him as Tom Van Dyke. Also, he was Senator Gibson on Scandal, Shonda Rhimes’ award winning show.
John Prosky
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Mark Costello
Costello played Commander Onclay on JAG. Since then, Costello has kept very busy. To recap some of his work, he acted in the show General Hospital and appeared on numerous shows like, Chris Rock’s Everybody Hates Chris, Criminal Minds and The West Wing. Not too shabby.
Mark Costello