 Kevin McCarthyDr. Miles J. Bennell | Dr. Miles J. Bennell |
 Dana WynterBecky Driscoll | Becky Driscoll |
 King DonovanJack Belicec | Jack Belicec |
 Carolyn JonesTheodora 'Teddy' Belicec | Theodora 'Teddy' Belicec |
 Larry GatesDr. Dan 'Danny' Kauffman | Dr. Dan 'Danny' Kauffman |
 Kenneth PattersonStanley Driscoll | Stanley Driscoll |
 Virginia ChristineWilma Lentz | Wilma Lentz |
 Jean WillesNurse Sally Withers | Nurse Sally Withers |
 Ralph DumkePolice Chief Nick Grivett | Police Chief Nick Grivett |
| GGuy WayOfficer Sam Janzek | Officer Sam Janzek |
| BBobby ClarkJimmy Grimaldi | Jimmy Grimaldi |
| BBeatrice MaudeGrandma Grimaldi | Grandma Grimaldi |
 Whit BissellEmergency Room Psychiatrist | Emergency Room Psychiatrist |
 Richard DeaconEmergency Room Doctor (uncredited) | Emergency Room Doctor (uncredited) |
 Robert OsterlohAmbulance Attendant | Ambulance Attendant |
| GGuy RennieRestaurant Owner | Restaurant Owner |
| EEileen StevensAnne Grimaldi | Anne Grimaldi |
 Tom FaddenUncle Ira Lentz | Uncle Ira Lentz |
| JJean AndrenEleda Lentz | Eleda Lentz |
 Everett GlassDr. Ed Pursey | Dr. Ed Pursey |
 Sam PeckinpahCharlie the Meter Reader | Charlie the Meter Reader |
 Dabbs GreerMack Lomax | Mack Lomax |
| MMarie SellandMartha Lomax | Martha Lomax |
| HHarry J. VejarMan carrying pods in Mile's office (extra) | Man carrying pods in Mile's office (extra) |
 J. Pat O'MalleyRailroad Baggage Handler (extra) | Railroad Baggage Handler (extra) |
| Richard DeaconDr. Harvey Bassett (uncredited) | Dr. Harvey Bassett (uncredited) |
 Frank HagneyTownsman (uncredited) | Townsman (uncredited) |
| Robert OsterlohAmbulance Driver (uncredited) | Ambulance Driver (uncredited) |
