Guest Stars Eve Plumb as Terry Summers Peter Graves as Jack Summers Constance Towers as Shirley Forbush Kaye Ballard as Elvira Wilson David Doyle as Fred Forbush Eddie Mekka as Johnny Detroit Shelly Johnson as Detroit's Girl #1 Gail Fisher as Dr. Frantz April Gilpin as Janet Co Starring Don Davis as One Man Band Ronnie Scribner as Greg Forbush Marc Gilpin as Bobby Steven Spencer as Billy Katrina Alexis as Kathy Forbush Nancy Traylor as Detroit's Girl #2