Peter Ford

as Wilbur Steele (as Tom Shea)

Keith McConnell

as Dr. Wednesday

Larisa Schubert

as Dr. Karen Muller / Dr. Kristine Muller

Stuart Lancaster

as W.W.

Elizabeth Knowles

as Dr. Mona Brigstick (as Lisa Grant)

Patrick M. Legrand

as Dr. William Mawson

Shelley Mynatt

as Flip

Catherine Phillippe

as Angelique