 Peter FordWilbur Steele (as Tom Shea) | Wilbur Steele (as Tom Shea) |
| KKeith McConnellDr. Wednesday | Dr. Wednesday |
 Larisa SchubertDr. Karen Muller / Dr. Kristine Muller | Dr. Karen Muller / Dr. Kristine Muller |
 Stuart LancasterW.W. | W.W. |
 Elizabeth KnowlesDr. Mona Brigstick (as Lisa Grant) | Dr. Mona Brigstick (as Lisa Grant) |
| PPatrick M. LegrandDr. William Mawson | Dr. William Mawson |
 Shelley MynattFlip | Flip |
 Catherine PhillippeAngelique | Angelique |
| JJames AnthonyThe Bull | The Bull |
| SSue SillaW.W.'s Girlfriend | W.W.'s Girlfriend |
| FFrank BeltHunter | Hunter |
| EEdward MurphyListener | Listener |
| LLarry VerdugoYoung Lawyer | Young Lawyer |
| CCandy NashSuzy Polo | Suzy Polo |
| LLewis ClarkMr. Thermometer | Mr. Thermometer |
| DDiane CopeMiss Thermometer | Miss Thermometer |
| SSusan BergdahlConception Room Girl | Conception Room Girl |
| JJeannie AndersonConception Room Girl (as Jeanie Anderson) | Conception Room Girl (as Jeanie Anderson) |
 Neola GraefConception Room Girl | Conception Room Girl |
| JJane TsentasConception Room Girl | Conception Room Girl |
| ZZerrin ArbeshConception Room Girl | Conception Room Girl |
 Barbara MillsConception Room Girl (uncredited) | Conception Room Girl (uncredited) |
 Ronee Blakley(uncredited) | (uncredited) |