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 Herb Edelman as Joey January Dean Martin as Frank Howell Lee Travis as Joan Wells Co Starring James Hong as Prof. Perkins Patti Pivaar as Daphne Gary Brockette as Dean Williams Sid Conrad as Dr. Hinton Ronnie Rondell Jr. as Case Eddie Lo Russo as Gus Lionel Decker as Jarvis Rita Alexander as Mary Phillips Credit Only Scatman Crothers as Jip Baker