The Fourth Arm

Maj. Hugh Gallagher

Paul 'Ferdy' Lamboit

Solange 'Chardonneret' Rohr

George 'Choucas' Macklin

Sgt. 'Grive' Cameron

Lt. Col. Tim Squires

Stephen 'Hibou' Lovell

Ellen 'Merle'

Col. Hugh Gwillim

Sgt. Sally 'Hirondelle' Birkett

Corp. Jack 'Miff' Moffat

Simone 'Rossignol' Portales

Capt. Nigel 'Mesange' Macaulay

Wilson 'Corbeau'

Prof. David Evans

Sgt. Maj. Gidney

Soltysyk 'Warsaw'

Pierre de Grouchy

Viardot

Sgt. Edwards

Claudine Castillon

Dispatcher (uncredited) / Dispatcher

Squadron Leader Preston

Pilot / Pilot (uncredited)