Mark Costello

Biography

Mark began working professionally in Los Angeles back in 1983, when he booked his first job as the "Starter" in, Hot Dog...the Movie". He continued working numerous Co-Star and Guest spots on episodic TV such as, "Murder She Wrote, "Dynasty," Knots Landing," "Who's the Boss," "LA Law," "Full House", "Seventh Heaven," "ER," "N.Y.P.D. Blue," "The West Wing," and "Criminal Minds." Mark also had recurring roles on such television shows as, "Bay City Blues," "JAG", and "First Monday." In 1990, Mark had a three year contract on the FOX youth oriented drama, "Tribes". Mark was very established in the theatre world in Los Angeles, having won Best Actor in a Feature Role from Stage Scene LA, for his performances in,"Finding Fossils" and "John is a Father" at The Road Theatre, as well as "Mom's Dead", at Sacred Fools. Mark appeared with Susan Sullivan and David Selby in Edward Albee's, "A Delicate Balance," at the Odyssey Theatre , which won the LA Drama Critics Circle McCulloh Award for Best Revival. Mark moved to Atlanta in 2017 and has appeared in the films, "Yes, God, Yes," "Our Friend" and the independent feature film, "Charles Sloan", which he played the title role, and which won For Best Full Length Feature Film at the 2022 Raleigh Film and Arts Festival.

Most Known For

The West Wing

as Guest

JAG

as Otis Flannik

JAG

as Wallace

JAG

as Commander Onclay

ER

as Kevin Halloran

Murder, She Wrote

as Guard

Murder, She Wrote

as Sgt. O'Connor

Murder, She Wrote

as Officer

MacGyver

as Cop

Full House

as Anchorman

Paradise

as Billionaire #1

Knots Landing

7th Heaven

as Ken

Everybody Hates Chris

as Mr. Richards

Femme Fatales

as Detective Mitchum

Profiler

as Trooper Jasper

Crazy like a Fox

as Nolan

Reasonable Doubts

as Hanratty

Yes, God, Yes

as Priest

Dead Silent

as Will Hilton