Overview
Holmes and Watson board a passenger train bound from London to Edinburgh, to guard the Star of Rhodesia, an enormous diamond worth a fortune belonging to an elderly woman of wealth; but within the first hour of the trip, the woman's son is murdered and the diamond stolen and any of the passengers in their car could be the killer thief.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 53 | July 21, 1967 (75) | |
 | 50 | October 8, 1953 (58) | |
 | 49 | March 25, 1969 (72) | |
 | 52 | July 25, 1960 (67) | |
 | 26 | May 24, 1964 (44) | |
 | 59 | August 1, 1973 (86) | |
 | 63 | July 22, 1974 (91) | |
 | 34 | May 1, 1955 (43) | |
 | 58 | November 26, 1957 (70) | |
 | 31 | February 7, 1987 (72) |