Overview
The O'Leary brothers -- honest Jack and roguish Dion -- become powerful figures, and eventually rivals, in Chicago on the eve of its Great Fire.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 23 | November 15, 1958 (44) | |
 | 22 | May 9, 1998 (83) | |
 | 29 | December 6, 1993 (85) | |
 | 45 | October 28, 1939 (46) | |
 | 32 | February 18, 1977 (71) | |
 | 37 | April 6, 1972 (71) | |
 | 22 | August 1, 1995 (80) | |
 | 25 | June 3, 1990 (77) | |
 | 42 | October 6, 1973 (78) | |
 | 61 | October 10, 1940 (63) |