Ward Bond Major Seth Adams Actor Robert Horton Flint McCullough Actor Frank McGrath Charlie Wooster Actor Terry Wilson Bill Hawks Actor Marshall Thompson Bradley Mason Guest Star Kathryn Card Abby Guest Star Maggie Pierce Roxanne Guest Star Henry Hull Mark Applewhite Guest Star Tom Nolan Tuck Hardy Guest Star Theodore Newton Buzz Guest Star Francis McDonald Tom Duncan Guest Star Henry Daniell Mr. Morton W. Snipple Guest Star Melinda Plowman Priscilla Walker Guest Star Leonard Nimoy Bernabe Zamora Guest Star Donald Woods Guest Star Joseph Mell Guest Star Henry Brandon Guest Star Harry Harvey Guest Star William Schallert Guest Star Ethel Shutta Guest Star Jean Holloway Writer Gene L. Coon Writer Harold Swanton Writer Howard Christie Writer Norman Jolley Writer Allen H. Miner Writer, Director Floyd Burton Writer Halsey Melone Writer Fred Cassidy Writer Virgil Vogel Director Herschel Daugherty Director Ted Post Director Bretaigne Windust Director Leonard Praskins Writer Richard Bartlett Director Jerry Hopper Director Joseph Pevney Director David Butler Director James Neilson Director