|Affiliation:||Counter Terrorist Unit|
|Profession:||Field agent, CTU Los Angeles|
|Mentioned in:||"Day 1: 4:00pm-5:00pm"|
Biselli was a CTU agent who went with Parker to investigate the safe house after CTU learned that it had been attacked. George Mason ordered Biselli and Parker there after CTU got a call from Kim Bauer, whose whereabouts were unknown and whose mother Teri Bauer was missing.