George Hamilton

~ as ~

Prof. Jim Tanner

Aldo Ray

~ as ~

Bruce

Suzanne Pleshette

~ as ~

Prof. Margery Lansing

Richard Carlson

~ as ~

Prof. Norman E. Van Zandt

Yvonne De Carlo

~ as ~

Mrs. Sally Hallson

Earl Holliman

~ as ~

Prof. Talbot Scott aka Scotty

Gary Merrill

~ as ~

Mark Corlane

Ken Murray

~ as ~

Grover

Barbara Nichols

~ as ~

Flora

Arthur O'Connell

~ as ~

Prof. Henry Hallson