Seymour Hicks

~ as ~

Professor Heggie

Nancy O'Neil

~ as ~

Angela Heggie

Gibson Gowland

~ as ~

Angus

Frederick Peisley

~ as ~

Jimmy Andrews

Eric Hales

~ as ~

Jack Campbell

Ben Field

~ as ~

Piermaster

Hubert Harben

~ as ~

Prof. Blenkinsop Fothergill

Rosamund John

~ as ~

Maggie Fraser

Robb Wilton

~ as ~

Reporter

Fewlass Llewellyn

~ as ~

Scientist at Meeting