Billy Mumy is an American actor, musician, and writer, best known for his role as Will Robinson in the classic television series Lost in Space, which aired from 1965 to 1968. He was born on February 1, 1954, in San Gabriel, California. Mumy began his acting career as a child and appeared in various television shows and films during the 1960s and 1970s. In addition to acting, Mumy is also a talented musician and has released several albums. He has collaborated with other artists and contributed to various projects, including voice work for animated series. Mumy remains a beloved figure in science fiction and pop culture.