as Chairman
as Lord Chelmsford
as De Lacey
as Self
as Jim Bloggs (voice)
as Field Marshall Sir Douglas Haig
as Lewis Serrocold
as Platon Karataev
as Mike McAllister
as Jim Connor
as Gus the Theatre Cat
as Montgomery Bell
as Ordinary Seaman Blake / Shorty Blake
as Dr. John H. Watson / Narrator
as Prof. Bernard Quatermass
