Richard Castillo was the Human helmsman of the U.S.S. Enterprise-C until its destruction at the Battle of Narendra III in 2344. During the battle, Castillo and the Enterprise-C inadvertently traveled through a temporal rift to the year 2366 of an alternate timeline. With the help of the Enterprise-D of that timeline, the Enterprise-C was able to re-enter the rift and thereby play its pivotal role in history.
- “Temporal Ambassador”: Rather than returning to 2344 as planned, Castillo and the Enterprise-C emerged in 2409 of the same alternate timeline and were captured by the Tholian Assembly in the Azure Nebula. The player must assist him and Tasha Yar to return to their proper time and fulfill their destiny.
- “Survivor”: The player discovers that after surviving the destruction of the Enterprise-C at Narendra III, Castillo and the other survivors were imprisoned at a Tal Shiar prison in the Pictae System, where he lived out the rest of his life.
- Richard Castillo at Memory Alpha, the Star Trek Wiki.
- Richard Castillo at Memory Beta, the non-canon Star Trek Wiki.