Malcolm McDowell as H. G. Wells

David Warner as Jack the Ripper - John Leslie Stevenson

Mary Steenburgen as Amy Robbins

Charles Cioffi as Lt. Mitchell

Kent Williams as Assistant

Andonia Katsaros as Mrs. Turner

Patti D'Arbanville as Shirley

James Garrett as Edwards

Keith McConnell as Harding

Leo Lewis as Richardson

Byron Webster as McKay

Karin de la Penha as Jenny

Geraldine Baron as Carol

Laurie Main as Inspector Gregson

Joseph Maher as Adams

M.C. Gainey as London Bobby

Clement von Franckenstein as Bobby (as Clement St. George)

Read Morgan as Booking Cop

Jim Haynie as 1st Cop

Shelley Hack as Docent

Corey Feldman as Boy at Museum

Bob Shaw as Banker

Larry J. Blake as Guard

Gene Hartline as Cab Driver

Rita Conde as Maid