Mark Costello
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.
Acting
TV
Full House
as Anchorman
1987
TV
Everybody Hates Chris
as Mr. Richards
2005
TV
ER
as Kevin Halloran
1994
TV
MacGyver
as Cop
1985
Movie
Yes, God, Yes
as Priest
2020
TV
The West Wing
as Guest
1999
TV
Paradise
as Billionaire #1
2025
TV
Murder, She Wrote
as Guard
1984
TV
Murder, She Wrote
as Sgt. O'Connor
1984
TV
Murder, She Wrote
as Officer
1984
TV
JAG
as Otis Flannik
1995
TV
JAG
as Wallace
1995
TV
JAG
as Commander Onclay
1995
Movie
Our Friend
as Richard
2019
TV
7th Heaven
as Ken
1996
Movie
Hot Dog... The Movie
as Event Starter
1984
TV
Profiler
as Trooper Jasper
1996
Movie
Turbulent Skies
as Gardner
2010
TV
Knots Landing
1979
Movie
Adult Swim Yule Log
as Sheriff
2022
TV
Femme Fatales
as Detective Mitchum
2011
Movie
Solar Flare
as Dispatcher Howard
2008
Movie
Locusts
as Director Rusk
2005
TV
It's Florida, Man.
as Joe Jones
2024