Overview
A prospector is murdered by The Cactus Kid and his gang, who hope to find the murdered man's goldmine. The miner's dog, Rin-Tin-Tin, recognizes the killers, who thereafter seek to use the dog to locate the lost mine. With the help of a government agent and a young girl, Rinty saves the mine and brings the bad guys to justice.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 11 | August 10, 1932 (13) | |
 | 37 | March 30, 1940 (48) | |
 | 26 | March 10, 1984 (80) | |
 | 63 | March 1, 1940 (73) | |
 | 16 | November 20, 1980 (67) | |
 | 46 | January 4, 1959 (74) | |
| - | - | |
 | 58 | August 10, 1959 (87) | |
| 52 | February 20, 1950 (72) | |
 | 57 | June 17, 1945 (72) |