James Stewart as Theodore Honey

Glynis Johns as Marjorie Corder

Marlene Dietrich as Monica Teasdale

Janette Scott as Elspeth Honey

Jack Hawkins as Dennis Scott

Elizabeth Allan as Shirley Scott

Ronald Squire as Sir John, Director

Wilfrid Hyde-White as Fisher, Inspector of Accidents (uncredited)

Bessie Love as Plane Passenger (uncredited)

Jill Clifford as Peggy, Stewardess

Felix Aylmer as

Douglas Bradley-Smith as

Basil Appleby as

Dora Bryan as

Hilda Campbell-Russell as Plane Passenger

Hugh Cross as

Maurice Denham as

Robert Dickens as

Mabel Etherington as

Maxwell Foster as

Alan Gifford as

Tom Gill as

David Hutcheson as

Gerald Kent as

Niall MacGinnis as

Hector MacGregor as

Kenneth More as

Stuart Nichol as

Marcel Poncin as

Roy Russell as

John Salew as

Karl Stepanek as

Philip Vickers as

Hugh Wakefield as

Wilfred Walter as