Mars Callahan

Mars Callahan

ActorWriterProducerDirector 1979–2025 (46 year career)

5.9 avg rating

Highest Rated

The Wonder Years

The Wonder Years

1988 · as Steve

ER

1994 · as Matt

Known For

That Thing You Do!

That Thing You Do!

Ernie the Disc Master Engineer

Kalifornia

Kalifornia

Walter Livesy

Poolhall Junkies

Poolhall Junkies

Johnny

Highway to Hell

Highway to Hell

State Policeman

I Know My First Name Is Steven

I Know My First Name Is Steven

Victor (Age 14)

Clifford

Clifford

Brian

What Love Is

What Love Is

Writer

The Wonder Years

The Wonder Years

Steve

Filmography

Acting (12)

·

Movies (7)

Dog Patrol: Operation Santa Paws

Dog Patrol: Operation Santa Paws

as Agent Matters

Poolhall Junkies

Poolhall Junkies

as Johnny

That Thing You Do!

That Thing You Do!

as Ernie the Disc Master Engineer

Clifford

Clifford

as Brian

Kalifornia

Kalifornia

as Walter Livesy

Highway to Hell

Highway to Hell

as State Policeman

The Children of Times Square

The Children of Times Square

as Brian (as Gregory 'Mars' Martin)

Television (5)

ER

as Matt

I Know My First Name Is Steven

I Know My First Name Is Steven

as Victor (Age 14)

The Wonder Years

The Wonder Years

as Steve

TV 101

TV 101

as Jack #1

Knots Landing

Knots Landing

as Man

Crew (5)

·

Movies (4)

What Love Is

What Love Is

Writer

Poolhall Junkies

Poolhall Junkies

Director

Zigs

Zigs

Director

Zigs

Zigs

Writer

Television (1)

Ballbreakers

Producer