Bill Mumy

The D-Con Chamber

2024

as Self

Space Command Redemption

2024

as Greg Mazzey

Babylon 5: The Road Home

2023

as Lennier (voice)

Toon In with Me

2021

as Self

What We Left Behind: Looking Back at Star Trek: Deep Space Nine

2018

as Self

Lost in Space

2018

as Real Dr. Smith

The Loud House

2016

as Timothy Mccole

Bravest Warriors

2012

as Ralph Waldo Pickle Chips

Ben 10: Ultimate Alien

2010

as Agent Bryson (voice)

The Face is Familiar

2009

as Narrator

Holly Hobbie and Friends: Surprise Party

2007

as Bud Morris (voice)

Holly Hobbie and Friends: Christmas Wishes

2006

as Bud Morris / Judge #1 (voice)

A.I. Assault

2006

as Major Keith

Look, Up in the Sky! The Amazing Story of Superman

2006

as Self

Holly Hobbie & Friends

2006

as Bud Morris (voice)

Derailroaded

2005

as Self

Ringers: Lord of the Fans

2005

as Self

Comic Book: The Movie

2004

as Bill Mumy

The Twilight Zone

2002

as Anthony Fremont

What's New, Scooby-Doo?

2002

as Harry Noze (voice)

Larry 'Wild Man' Fischer

2002

as Self

Crossing Jordan

2001

as Paper Shredder Operator

TVography

2001

Buzz Lightyear of Star Command

2000

as Eon (voice)

Behind the Dementia

2000

as himself

Boom! Hollywood's Greatest Disaster Movies

2000

as Self - Host

Attack of the 50 Foot Monster Mania

1999

as Narrator

Lost In Space Forever

1998

as Self (also archive footage)

The Weird Al Show

1997

The Monkey Prince

1996

as Sam (voice)

Underground Adventure

1996

as Sam (voice)

Space Cases

1996

Three Wishes

1995

as Neighbor

The Fantasy Worlds of Irwin Allen

1995

as Self - Host

The Steven Banks Show

1994

as Billy Mumy

A Bewitched Christmas

1994

as Michael (as Billy Mumy)

Space Ghost Coast to Coast

1994

Babylon 5

1994

as Lennier

Diagnosis: Murder

1993

as Parker Craddick

Animaniacs

1993

as The Farmer (voice)

Star Trek: Deep Space Nine

1993

as Kellin

Batman: The Animated Series

1992

as The Fox (voice)

Double Trouble

1992

as Bob

The Ren & Stimpy Show

1991

Captain America

1990

as Young General Fleming

The Flash

1990

as Roger Braintree

Superboy

1988

Zabagabee

1987

as Art Barnes

Matlock

1986

as Dr. Irwin Bruckner

Hard to Hold

1984

as The James Roberts Band - Keyboard

Twilight Zone: The Movie

1983

as Tim

Fish Heads

1980

Sunshine Christmas

1977

as Weaver

Archie

1976

as Larry

Saturday Night Live

1975

as Art Barnes (uncredited)

Sunshine

1975

as Weaver

The Rockford Files

1974

as Trask

The Rockford Files: Backlash of the Hunter

1974

as Nick Butler

Papillon

1973

as Lariot

Sunshine

1973

as Weaver

Bless the Beasts & Children

1971

as Lawrence Teft

Rascal

1969

as Sterling North

Lancer

1968

Wild in the Streets

1968

as Boy (uncredited)

I Dream of Jeannie

1965

as Custer

Lost in Space

1965

as Will Robinson

Dear Brigitte

1965

as Erasmus 'Ras' Leaf

Lost in Space - No Place to Hide

1965

as Will Robinson

The Munsters

1964

Bewitched

1964

as Michael

For the Love of Willadean

1964

as Freddy Gray

Palm Springs Weekend

1963

as Boom Boom Yates

The Fugitive

1963

as David Taft

The Greatest Show on Earth

1963

as Jeff

A Ticklish Affair

1963

as Alex Martin

Vacation Playhouse

1963

as Chris Williams

A Child Is Waiting

1963

as Child

Sammy, the Way-Out Seal

1962

as Petey Loomis

Going My Way

1962

The Eleventh Hour

1962

The Alfred Hitchcock Hour

1962

as Tony Mitchell

The Virginian

1962

as Willy

Ben Casey

1961

Dr. Kildare

1961

as Jeffey

Tammy Tell Me True

1961

as Neil Bateman

Kraft Mystery Theatre

1961

The Wizard of Baghdad

1961

as Aladdin

National Velvet

1960

The Twilight Zone

1959

as Billy Bayles

Perry Mason

1957

as Miles

Wagon Train

1957

as Toddy

Have Gun, Will Travel

1957

as Little Boy at Carlton Hotel

Alfred Hitchcock Presents

1955

as Jackie Chester

The Wonderful World of Disney

1954

as Petey Loomis

Letter to Loretta

1953

as Rennie

General Electric Theater

1953

as Buzz

The Jack Benny Program

1950

as Little Boy Who Weighs Himself