Casting call sheets held in the Crawford Collection also show the following information:
Actors considered for the role of Geoffrey Baxter include Ernie Bourne and Terry Norris.
Actors considered for the role of Bill include Denzil Howsen and Peter Stratford.
Actors considered for the role of Guard No. 1 include Graham Ross and John Heddle.
Extras considered for the role of (corpse) Dr Paul Mitchell included Peter Cumming, Russell Hagg, and Patrick Edgeworth.
Extras (male) included John Fergusson, Terry Scott, Joerg Ulitzka, Bill Fell, Bruce Beck, and Peter Dixon.
Louis Seater was cast as Detective Green.
Thomas Richards played 'Henchman'.
Terry Mountain played 'Guard No. 2'.
Extras (female) were Joan Morgan, Pat Harkin, Libby Bromich, Maggie Jacob, Cherry Bowen, and Gail Smith.
Stahl's dog was played by a Great Dane called 'Lorry'.
The stuntmen were Gary Howard, Alan Large, and Tony Sprague.==
