In pre-historic times (dream sequence), our hero, in a loin cloth, battles other cavemen over the opposite sex.
| Actor | Role |
|---|---|
 Harold LloydLonesome Luke | Lonesome Luke |
 Harry 'Snub' PollardSnub | Snub |
 Bebe DanielsBetty | Betty |
 Gilbert PrattNot listed | Not listed |
 Fred C. NewmeyerNot listed | Not listed |
| BBilly FayNot listed | Not listed |
 Bud JamisonNot listed | Not listed |
 Charles StevensonNot listed | Not listed |
 Sammy BrooksNot listed | Not listed |
| DDavid VoorheesTall caveman | Tall caveman |
| VVirginia BaynesNot listed | Not listed |
| RRuth RowanNot listed | Not listed |
| GGrace McLernonNot listed | Not listed |
| RRuth ChurchillNot listed | Not listed |
 Harry ToddMan on park bench | Man on park bench |
 Marie MosquiniGirl on bench | Girl on bench |
 Nina SpeightWoman with policeman | Woman with policeman |