Callsigns are names, different from their given names, used to identify pilots and ECO's. While there have been no guidelines for callsigns given on screen, they are typically of a heroic or comical nature, sometimes given for a specific circumstance. Examples of callsigns are Apollo (Lee Adama), Starbuck (Kara Thrace), Racetrack (Margaret Edmondson), and Husker (William Adama).