Jerry Lewis plays an Ohio optometrist who has a six-year old daughter with epilepsy. He fights to get the FDA to approve a drug (at that time only available in England) for use in the U.S.
| Actor | Role |
|---|---|
 Jerry LewisDr. Bernard Abrams | Dr. Bernard Abrams |
 Morgan FreemanDr. Sherard | Dr. Sherard |
 Jaclyn BernsteinFelice Abrams | Felice Abrams |
 Gerard ParkesFather Robert Hunt | Father Robert Hunt |
 Patty DukeShirley Abrams | Shirley Abrams |
 Barry MorseDr. Whalley | Dr. Whalley |
| JJames BeardenNot listed | Not listed |
| RRobert BensonDr. Keith | Dr. Keith |
 Eve CrawfordNot listed | Not listed |
| MMarcia DiamondNot listed | Not listed |
 Rosemary DunsmoreNot listed | Not listed |
| CChristopher EarleNot listed | Not listed |
 Patricia HamiltonNot listed | Not listed |
| AAlana KingNot listed | Not listed |
| SSamantha LangevinNot listed | Not listed |
 Cec LinderNot listed | Not listed |
 Michael MillarNot listed | Not listed |
| DDavid B. NicholsNot listed | Not listed |
| SSean RobergeNot listed | Not listed |
 John StockerNot listed | Not listed |
 Robert WisdenNot listed | Not listed |