Mark Costello
Acting
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.
Cast credits(32)

Cop
1985

Guard
1984

Sgt. O'Connor
1984

Officer
1984

Anchorman
1987

Otis Flannik
1995

Wallace
1995

Commander Onclay
1995

Kevin Halloran
1994

1979

Guest
1999

Nolan
1984

Billionaire #1
2025

Detective Mitchum
2011

Hanratty
1991
Carl
1990

Ken
1996

Will Hilton
2016

Event Starter
1984

Priest
2020

2007

Richard
2019

Director Rusk
2005

Blake Morgan
2017

Dispatcher Howard
2008

Mr. Slate
1984

Gardner
2010

Sheriff
2022

Policeman
1990

George Ray
1996

FBI Agent #1
1987

Charles Sloan
2023