
| Year | Event | |||
| 2361 |  ● [1]
         A duplicate of Riker is created during a mission to the Nervala IV. [1] 
 | 
| Canon source | Backstage source | Novel source | DITL speculation | 
| # | Series | Season | Source | Comment | 
| 1 | TNG | 6 | Second Chances | |
| 2 | TNG | 5 | Conundrum | Four years after he enlisted | 
| Series : | TNG Season 6 | 
| Episode : | Second Chances | 
| Series : | TNG Season 5 | 
| Episode : | Conundrum | 
| Comment : | Four years after he enlisted | 
| © Graham & Ian Kennedy | Page views : 19,925 | Last updated : 7 Jul 2004 |