 James CaanLee Stegler | Lee Stegler |
 Joanna MooreMickey Stegler | Mickey Stegler |
 Robert DuvallChiz | Chiz |
 Barbara BaxleyJean | Jean |
 Charles AidmanGus | Gus |
 Steve IhnatRoss Duellan | Ross Duellan |
 Michael MurphyRick | Rick |
 Ted KnightWalter Larson | Walter Larson |
| SStephen CoitEhrman | Ehrman |
| JJohn RaynerDunc | Dunc |
| CCharles IrvingSeidel | Seidel |
 Bobby RihaStevie Stegler | Stevie Stegler |
| RRay BallardManager (uncredited) | Manager (uncredited) |
| BBenjie BancroftTechnician (uncredited) | Technician (uncredited) |
| AArthur BernardCoopersmith (uncredited) | Coopersmith (uncredited) |
 George BlagoiReporter (uncredited) | Reporter (uncredited) |
 Ivan BonarNogrady (uncredited) | Nogrady (uncredited) |
| BBetty BreslerRoss's Secretary (uncredited) | Ross's Secretary (uncredited) |
 Robert BuckinghamParty Guest (uncredited) | Party Guest (uncredited) |
 William ConradTV Newscaster (voice) (uncredited) | TV Newscaster (voice) (uncredited) |
| RRobert CunninghamTechnician (uncredited) | Technician (uncredited) |
| RRon DoyleReporter (uncredited) | Reporter (uncredited) |
 Harry EllerbeCroyden (uncredited) | Croyden (uncredited) |
 Mike FarrellHouston Engineer (uncredited) | Houston Engineer (uncredited) |
| SSharron FryeMarion (uncredited) | Marion (uncredited) |
| DDavid GreeneTechnician (uncredited) | Technician (uncredited) |
 Stacy HarrisTechnician (uncredited) | Technician (uncredited) |
| VVincent HowardFacility Director (uncredited) | Facility Director (uncredited) |
| JJames JohnsonTechnician (uncredited) | Technician (uncredited) |
 Mike LallyTechnician (uncredited) | Technician (uncredited) |
