[post_page_title]Mark Costello as various characters[/post_page_title]
Yet another actor who starred in JAG as more than one character! Mark Costello first stars in the crime drama as someone called Wallace in Season 3, Episode 7. He then comes back in Season 4 as Commander Onclay, Season 5 as General Otis Flannik, and then Season 7 Marine General. Those eagle-eyed JAG fans will have noticed Mark Costello pop up as different characters over the years, much to the amusement of those who keep seeing his face.
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