Charles William Mumy, Jr. (born February 1, 1954), is an American actor, musician, pitchman, instrumentalist, voice-over artist and a figure in the science fiction community. He is known primarily for his roles in movies and television, character-type roles, and who also works in television production. The red-headed Mumy came to prominence in the 1960s as a child actor appearing in such popular shows as Perry Mason, Alfred Hitchcock Presents, Bewitched, and The Twilight Zone, where in one episode he famously sent people to the corn field in It's a Good Life. He played his possibly most-recognized role as Will Robinson in the cult 1960s television series, Lost in Space as Guy Williams's and June Lockhart's youngest child/son, and Jonathan Harris's closest friend. After the series' cancellation he continue acting in both television and film. In the 1969 Disney film Rascal he played the lonely teenager Sterling North, and in 1971 he played Teft in Stanley Kramer's Bless the Beasts and the Children. In the 1990s, he had a recurring role as Lennier, in Babylon 5, and he also served as narrator of A&E Network's Emmy Award-winning series, Biography.
Mumy has continued to be involved with Lost in Space, penning numerous issues of the Innovation comic book series which allowed the Robinsons to finally reach Alpha Centauri. These issues were collected in the graphic novel Voyage to the Bottom of the Soul, which mirrored the darker, serious tone of the earlier television episodes.