Charles William Mumy Jr. is an American actor and musician and a figure in the science-fiction community/comic book fandom. He came
to prominence in the 1960s as a child actor, when he was credited as Billy Mumy era which included his appearing on television in
The Twilight Zone and Alfred Hitchcock Presents, and on film in Dear Brigitte, followed by an iconic three-season role as
Will Robinson in the 1960s CBS sci-fi series Lost in Space.