Mark Costello
Unlike the other actors from the JAG acting list, Mark Costello reached other roles after covering that of Commander Onclay. He made regular guest appearances on various shows like Criminal Minds, The West Wing and Everybody Hates Chris. One of his famous roles was on General Hospital.
Mark Costello
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Bill Cobbs
What a pity it was to say goodbye to Chaplain Matthew Turner when the show came to an end. Following this, he was Tony on The Drew Carey Show, and he had a number of other guest appearances elsewhere. If you’re a Ben Stiller fan, then you’ll remember Reginald from Night at the Museum.
Bill Cobbs
