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Charles William Mumy Jr. (February 1, 1954) is an American actor and musician best known for starring as Will Robinson on the television show ''Series/LostInSpace'', and his roles on ''Series/TheTwilightZone1959'', ''Series/AlfredHitchcockPresents'', and ''Series/BabylonFive''. As a musician, Mumy was one half of the duo Barnes & Barnes, who are best known for their novelty song "[[https://www.youtube.com/watch?v=cn73Wtem0No Fish Heads]]".

He is married to Eileen Joy Davis and they have two children, including actress Creator/LilianaMumy.

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[[folder:Film Roles]]
* ''Film/TheWizardOfBaghdad'' as Aladdin (UncreditedRole)
* ''Film/TammyTellMeTrue'' as Neil Bateman (uncredited)
* ''Film/AChildIsWaiting'' as Boy Counting Jean's pearls
* ''Film/ATicklishAffair'' as Alex Martin
* ''Film/PalmSpringsWeekend'' as 'Boom Boom' Yates
* ''Film/DearBrigitte'' as Erasmus 'Ras' Leaf
* ''Film/WildInTheStreets'' as Boy (uncredited)
* ''Film/{{Rascal}}'' as Sterling North
* ''Film/BlessTheBeastsAndChildren'' as Lawrence Teft
* ''Film/{{Papillon}}'' as Lariot
* ''Film/TwilightZoneTheMovie'' as Tim (segment:It's a Good Life)
* ''Film/HardToHold'' as The James Roberts Band-Keyboard
* ''Film/CaptainAmerica1990'' as Young General Fleming
* ''Film/DoubleTrouble'' as Bob
* ''Film/ThreeWishes'' as Neighbor
* ''WesternAnimation/TheMonkeyPrince'' as Sam
* ''WesternAnimation/UndergroundAdventure'' as Sam
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[[folder:Television Roles]]
* ''Series/WireService'' as Kidnapped boy (1 episode)
* ''Series/TheLorettaYoungShow'' as Jimmy Harrison/Rennie (2 episodes)
* ''Series/AlfredHitchcockPresents'' as Mickey Hollins/Jackie Chester (2 episodes)
* ''Series/DrKildare'' as Jeffey (1 episode)
* ''Series/TheAlfredHitchcockHour'' as Tony Mitchell (1 episode)
* ''Series/GoingMyWay'' as Mark Murdock (1 episode)
* ''Series/WagonTrain'' as Toddy (1 episode)
* ''Series/TheTwilightZone1959'' as Billy Bayles, Anthony Fremont, and Young Pip Phillips (3 episodes)
* ''Series/PerryMason'' as Miles (1 episode)
* ''Series/TheFugitive'' as David Taft (1 episode)
* ''Series/TheAdventuresOfOzzieAndHarriet'' as Billy (3 episodes)
* ''Series/TheMunsters'' as Googie Miller (1 episode)
* ''Series/TheVirginian'' as Willy (1 episode)
* ''Series/BenCasey'' as Victor Chase (1 episode)
* ''Series/{{Bewitched}}'' as Darrin the Boy/Michael (2 episodes)
* ''Series/IDreamOFJeannie'' as Custer Jamison (1 episode)
* ''Series/LostInSpace'' as Will Robinson
* ''Series/{{Lancer}}'' as Andy Cutler (1 episode)
* ''Series/HereComeTheBrides'' as Simon Bill (1 episode)
* ''Series/TheRockfordFiles'' as Trask/Nick Butler (2 episodes)
* ''Series/{{Matlock}}'' as Dr. Irwin Bruckner (1 episode)
* ''Series/TheFlash1990'' as Roger Braintree (1 episode)
* ''Series/TheAdventuresOfSuperboy'' as Tommy Puck (3 episodes)
* ''Series/UltramanTheUltimateHero'' (1 episode)
* ''WesternAnimation/{{Animaniacs}}'' as The Farmer (1 episode)
* ''WesternAnimation/TheRenAndStimpyShow'' as Dr. Brainchild (1 episode)
* ''WesternAnimation/BatmanTheAnimatedSeries'' as The Fox/Warren Lawford (1 episode)
* ''Series/SpaceCases'' as Ferna Herna (1 episode)
* ''Series/TheWeirdAlShow'' as Delivery Guy (1 episode)
* ''Series/DiagnosisMurder'' as Parker Craddick (1 episode)
* ''Series/BabylonFive'' as Lennier
* ''Series/StarTrekDeepSpaceNine'' as Kellin (1 episode)
* ''WesternAnimation/BuzzLightyearOfStarCommand'' as Eon (2 episodes)
* ''WesternAnimation/WhatsNewScoobyDoo'' as Harry Noze (1 episode)
* ''Series/TheTwilightZone2002'' as Anthony Fremont (1 episode)
* ''Series/{{Biography}}'' as Narrator (3 episodes)
* ''Series/CrossingJordan'' as Paper Shredder Operator (1 episode)
* ''WesternAnimation/Ben10UltimateAlien'' as Agent Bryson (1 episode)
* ''WesternAnimation/TransformersRescueBots'' as Vigil (2 episodes)
* ''WesternAnimation/TheLoudHouse'' as Timothy [=McCole=] (1 episode)
* ''WesternAnimation/BravestWarriors'' as various (11 episodes)
* ''Series/LostInSpace2018'' as Dr. Zachary Smith/Real Dr. Smith (2 episodes)
* ''Series/SpaceCommand'' as Greg Mazzey
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