From the
Radio Times:
5.40
DR. WHOAn adventure in space and time
starring
WILLIAM HARTNELL
WILLIAM RUSSELL
JACQUELINE HILLand
MAUREEN O'BRIEN Escape to Dangerby BILL STRUTTON
Dr. Who abd Vicki challenge the Zarbi. Ian makes a desperate attempt to find Barbara.
Dr. WhoWILLIAM HARTNELL
Ian ChestertonWILLIAM RUSSELL
Barbara WrightJACQUELINE HILL
VickiMAUREEN O'BRIEN
Menoptra VrestinROSLYN DE WINTER
The ZarbiROBERT JEWELL, HUGH LUND
KEVIN MANSER, JACK PITT
JOHN SCOTT MARTIN, GERALD TAYLOR
Animus voiceCATHERINE FLEMING
Insect movement by Roslyn de Winter
Title music by RON GRAINER
with the BBC Radiophonic Workshop
Story editor, Dennis Spooner
Designer, John Wood
Producer, VERITY LAMBERT
† Directed by RICHARD MARTIN