Michael Caine
Dr. Henry Jekyll / Mr. Edward Hyde
Cheryl Ladd
Sara Crawford
Joss Ackland
Dr. Charles Lanyon
Ronald Pickup
Jeffrey Utterson, Esquire
Diane Keen
Annabel
Kim Thomson
Lucy Harris
Kevin McNally
Sergeant Hornby
David Schofield
Snape
Lionel Jeffries
Jekyll's Father
Lee Montague
Inspector Palmer
Miriam Karlin
Mrs. Hackett
Lance Percival
Beresford Mount, Prince's Private Secretary
Joan Heal
Mrs. Clark
Frank Barrie
Poole the Butler
Martin Jacobs
Young Man (as Martyn Jacobs)
Duncan Gould
Businessman
John Scarborough
Auctioneer
Harvey Ashby
Customer
Ray Armstrong
Head Groom
Kiran Shah
Sara's Son
Nina Kennedy
Little Girl
Peter Gale
Lanyon's Butler
Andrew Castell
Dr. Lloyd
Gary Shail
Sailor
David Michaels
Medical Student 1
Simon Adams
Medical Student 2
Richard Dixon
Medical Student 3
Eric Dodson
Head Porter
Jill Pearson
Nurse
Samantha Womack
Young Maid (Margaret) (as Samantha Janus)
Margaret Rawlings
Jekyll's Mother
Michael Stainton
Duty Sergeant
Jazzer Jeyes
Pub Customer
Terry Walsh
Pub Customer
Eric Mason
Landlord
Philip Locke
Editor
Terence Plummer
Big Detective
Ross McCall
Copy Boy
Peter Geeves
Sub Editor
Craig Crosbie
Lab Technician
Antony Brown
Sergeant Cop
Nigel Betts
Local Cop
Prentis Hancock
Vendor/Detective