
Mark Costello
Department: Acting
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.
Known For

Charles Sloan
2023

Turbulent Skies
2010

Locusts
2005

Our Friend
2019

U.S. Marshals: Waco & Rhinehart
1987

Hollywood Hot Tubs
1984

Hot Dog... The Movie
1984

Adult Swim Yule Log
2022

Doobious Sources
2017

Yes, God, Yes
2020

Solar Flare
2008

An Accidental Christmas
2007

Zarkorr! The Invader
1996

Faith
1990

JAG
1995

Crazy like a Fox
1984

Full House
1987

Tribes
1990

Dead Silent
2016

Reasonable Doubts
1991

Femme Fatales
2011

MacGyver
1985

JAG
1995

JAG
1995

7th Heaven
1996

The West Wing
1999

ER
1994

Murder, She Wrote
1984

Murder, She Wrote
1984

Knots Landing
1979

Murder, She Wrote
1984

Paradise
2025

Everybody Hates Chris
2005

Profiler
1996