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Mark Costello

Acting

St. Louis, Missouri, United States

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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.

Popularity: 0
Total credits: 32

Known For

ER
TV
★7.8

ER

as Kevin Halloran

JAG
TV
★7.3

JAG

as Otis Flannik

The West Wing

Movies (15)

Charles Sloan

Charles Sloan

as Charles Sloan

2023

Adult Swim Yule Log

Adult Swim Yule Log

as Sheriff

2022

Yes, God, Yes

TV Shows (17)

ER

ER

as Kevin Halloran

1 ep.

JAG

JAG

as Otis Flannik

1 ep.

The West Wing
TV
★8.3

The West Wing

as Guest

Murder, She Wrote
TV
★7.5

Murder, She Wrote

as Guard

MacGyver
TV
★7.7

MacGyver

as Cop

Knots Landing
TV
★6.9

Knots Landing

Full House
TV
★7.5

Full House

as Anchorman

Paradise
TV
★7.5

Paradise

as Billionaire #1

Everybody Hates Chris
TV
★8.1

Everybody Hates Chris

as Mr. Richards

7th Heaven
TV
★6.4

7th Heaven

as Ken

Profiler
TV
★7.0

Profiler

as Trooper Jasper

Crazy like a Fox
TV
★7.2

Crazy like a Fox

as Nolan

ER
TV
★7.8

ER

as Kevin Halloran

1994

JAG
TV
★7.3

JAG

as Otis Flannik

1995

The West Wing
TV
★8.3

The West Wing

as Guest

1999

Murder, She Wrote
TV
★7.5

Murder, She Wrote

as Guard

1984

MacGyver
TV
★7.7

MacGyver

as Cop

1985

Knots Landing
TV
★6.9

Knots Landing

1979

Full House
TV
★7.5

Full House

as Anchorman

1987

Paradise
TV
★7.5

Paradise

as Billionaire #1

2025

Everybody Hates Chris
TV
★8.1

Everybody Hates Chris

as Mr. Richards

2005

7th Heaven
TV
★6.4

7th Heaven

as Ken

1996

Profiler
TV
★7.0

Profiler

as Trooper Jasper

1996

Crazy like a Fox
TV
★7.2

Crazy like a Fox

as Nolan

1984

Yes, God, Yes

as Priest

2020

Our Friend

Our Friend

as Richard

2019

Doobious Sources

Doobious Sources

as Blake Morgan

2017

Turbulent Skies

Turbulent Skies

as Gardner

2010

Solar Flare

Solar Flare

as Dispatcher Howard

2008

An Accidental Christmas

An Accidental Christmas

as Mr Carroll

2007

Locusts

Locusts

as Director Rusk

2005

Kraa! The Sea Monster

Kraa! The Sea Monster

as Nuclear Power Plant Supervisor (Uncredited)

1998

Zarkorr! The Invader

Zarkorr! The Invader

as George Ray

1996

Faith

Faith

as Policeman

1990

U.S. Marshals: Waco & Rhinehart

U.S. Marshals: Waco & Rhinehart

as FBI Agent #1

1987

Hollywood Hot Tubs

Hollywood Hot Tubs

as Mr. Slate

1984

Hot Dog... The Movie

Hot Dog... The Movie

as Event Starter

1984

Charles Sloan

Charles Sloan

as Charles Sloan

2023

Adult Swim Yule Log

Adult Swim Yule Log

as Sheriff

2022

Yes, God, Yes

Yes, God, Yes

as Priest

2020

Our Friend

Our Friend

as Richard

2019

Doobious Sources

Doobious Sources

as Blake Morgan

2017

Turbulent Skies

Turbulent Skies

as Gardner

2010

Solar Flare

Solar Flare

as Dispatcher Howard

2008

An Accidental Christmas

An Accidental Christmas

as Mr Carroll

2007

Locusts

Locusts

as Director Rusk

2005

Kraa! The Sea Monster

Kraa! The Sea Monster

as Nuclear Power Plant Supervisor (Uncredited)

1998

Zarkorr! The Invader

Zarkorr! The Invader

as George Ray

1996

Faith

Faith

as Policeman

1990

U.S. Marshals: Waco & Rhinehart

U.S. Marshals: Waco & Rhinehart

as FBI Agent #1

1987

Hollywood Hot Tubs

Hollywood Hot Tubs

as Mr. Slate

1984

Hot Dog... The Movie

Hot Dog... The Movie

as Event Starter

1984

The West Wing

as Guest

1 ep.

Murder, She Wrote

Murder, She Wrote

as Guard

1 ep.

MacGyver

MacGyver

as Cop

1 ep.

Knots Landing

Knots Landing

1 ep.

Full House

Full House

as Anchorman

1 ep.

Paradise

Paradise

as Billionaire #1

1 ep.

Everybody Hates Chris

Everybody Hates Chris

as Mr. Richards

1 ep.

7th Heaven

7th Heaven

as Ken

1 ep.

Profiler

Profiler

as Trooper Jasper

1 ep.

Crazy like a Fox

Crazy like a Fox

as Nolan

1 ep.

Femme Fatales

Femme Fatales

as Detective Mitchum

1 ep.

Reasonable Doubts

Reasonable Doubts

as Hanratty

2 ep.

It's Florida, Man.

It's Florida, Man.

as Joe Jones

1 ep.

Dead Silent

Dead Silent

as Will Hilton

1 ep.

No image

Tribes

as Carl

52 ep.

ER

ER

as Kevin Halloran

1 episodes

JAG

JAG

as Otis Flannik

1 episodes

The West Wing

The West Wing

as Guest

1 episodes

Murder, She Wrote

Murder, She Wrote

as Guard

1 episodes

MacGyver

MacGyver

as Cop

1 episodes

Knots Landing

Knots Landing

1 episodes

Full House

Full House

as Anchorman

1 episodes

Paradise

Paradise

as Billionaire #1

1 episodes

Everybody Hates Chris

Everybody Hates Chris

as Mr. Richards

1 episodes

7th Heaven

7th Heaven

as Ken

1 episodes

Profiler

Profiler

as Trooper Jasper

1 episodes

Crazy like a Fox

Crazy like a Fox

as Nolan

1 episodes

Femme Fatales

Femme Fatales

as Detective Mitchum

1 episodes

Reasonable Doubts

Reasonable Doubts

as Hanratty

2 episodes

It's Florida, Man.

It's Florida, Man.

as Joe Jones

1 episodes

Dead Silent

Dead Silent

as Will Hilton

1 episodes

No image

Tribes

as Carl

52 episodes