The script held in the Crawford Collection in the AFI Research Collection contains the following character notes (excluding regular characters):
'MARK WALKER. Late twenties. Smooth, tough, cool. Very fond of his sister who's [sic] death he wishes to avenge.
'PETER YOUNG. Late twenties. Handsome Ski Instructor. Likeable personality. Complete libertine.
'CAROL GREEN. Twenties. Attractive. Good figure. The pleasures of becoming the boss's wife have faded. She looks for excitement outside the marriage bed - and finds it.
'CHARLES GREEN. Fifties or older. Austrian - now resident in Australia. He's very jealous of his young wife. We shall come to sympathise with him.
'LILIAN DAVIS. Late thirties. Well dressed, well kept - and well off. She can indulge her fancies. As she gets older - the men get younger.
'TED SCOTT. Mid thirties. General factotum around the Lodge. Friends with everyone. Eager to please.
'RECEPTIONIST. Twenties. Attractive. Personable.
'MANAGER. 50's. Genial - helpful. Could be Continental.
'BOBBY. No lines, but direction needed.
'YOUNG MAN. Extra.
'MARK'S GIRL. No lines, but direction needed.
'YOUNG GIRL. Extra.
'GUNTHER STRAUSS. Part to be played by actual Ski Instructor/Stuntman.'