Overview
Sebastian is an undisciplined mathematics genius who works in the "cipher bureau" of the British Intelligence. While cracking enemy codes, Sebastian finds time to romance co-worker Rebecca Howard.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 46 | May 8, 1999 (78) | |
 | 29 | January 15, 2011 (72) | |
 | 53 | January 27, 1986 (71) | |
 | 63 | May 21, 2000 (96) | |
 | 33 | December 6, 1972 (38) | |
 | 37 | March 13, 1997 (66) | |
 | 49 | June 29, 2002 (83) | |
 | 39 | October 25, 2013 (85) | |
 | 34 | May 15, 2019 (85) | |
| - | - |