Special Guest Stars Robert Urich as Dan Tanna Dick Sargent as Marty Cole Vic Morrow as Mark Haines Guest Stars Michael Conrad as Ed Slocum Dean Martin as Frank Howell Lee Travis as Joan Wells Herb Edelman as Joey January Co Starring James Hong as Prof. Perkins Ronnie Rondell Jr. as Case Sid Conrad as Dr. Hinton Eddie Lo Russo as Gus Lionel Decker as Jarvis Rita Alexander as Mary Phillips Patti Pivaar as Daphne Gary Brockette as Dean Williams Credit Only Scatman Crothers as Jip Baker
