From Battlestar Wiki, the free, open content Battlestar Galactica encyclopedia and episode guide
Joker is the known call sign for at least two pilots on Galactica:
- A restored Viper Mark II, Viper 1104,has a nameplate for a Lieutenant Pete Hickey, who was likely a Viper pilot assigned to Galactica during the first Cylon War (Miniseries).
- Another Joker is on board Galactica during the Cylon attack and is launched in the first sortie against the Cylons before jumping to Ragnar Anchorage (Miniseries, Night 1). He apparently survives, as he is visible on the pilot's roster during "Act of Contrition".
- Name and rank confirmed based on Official Battlestar Galactica Props & Costumes Auction Archive listing for Lt. Pete "Joker" Hickey's nameplate.