Home People Bill Mumy Bill Mumy movies Bill Mumy movies Bill Mumy Movies (27) What We Left Behind: Looking Back at Star Trek: Deep Space Nine (2018) He was 64 years old The Face Is Familiar (2009) As Narrator. He was 55 years old A.I. Assault (2006) As Major Keith. He was 52 years old Look, Up in the Sky! The Amazing Story of Superman (2006) As Himself. He was 52 years old Attack of the 50 Foot Monster Mania (1999) As Narrator. He was 44 years old Lost In Space Forever (1998) As Himself (also archive footage). He was 43 years old Lost In Space Forever (1998) As Writer. He was 43 years old Three Wishes (1995) As Neighbor. He was 41 years old Double Trouble (1992) As Bob. He was 38 years old Captain America (1990) As Young General Fleming. He was 36 years old Hard to Hold (1984) As The James Roberts Band - Keyboard. He was 30 years old Twilight Zone: The Movie (1983) As Tim (segment "It's a Good Life"). He was 29 years old Fish Heads (1980) He was 25 years old Sunshine Christmas (1977) As Weaver. He was 23 years old Papillon (1973) As Lariot. He was 19 years old Sunshine (1973) As Weaver. He was 19 years old Bless the Beasts & Children (1971) As Lawrence Teft. He was 17 years old Rascal (1969) As Sterling North. He was 15 years old Wild in the Streets (1968) As Boy. He was 14 years old Dear Brigitte (1965) As Erasmus 'Ras' Leaf. He was 10 years old Palm Springs Weekend (1963) As Boom Boom Yates. He was 9 years old A Ticklish Affair (1963) As Alex Martin (as Billy Mumy). He was 9 years old A Child Is Waiting (1963) As Child. He was 9 years old Sammy, the Way-Out Seal (1962) As Petey Loomis. He was 8 years old Tammy Tell Me True (1961) As Neil Bateman. He was 7 years old The Wizard of Baghdad (1961) As Aladdin. He was 7 years old Under the Smogberry Trees (1969) As Art Barnes.