Paul Walker as Brian O'Conner
Brian went undercover to investigate Dom and his crew after discovering their involvement in hijacking trucks for supplies. This begins in 2001's The Fast and the Furious when he joins Dom's crew.
As Brian Earl Spilner, O'Conner first encounters Dominic as an undercover cop tasked with bringing him to justice. He assists Dominic in eluding police arrest twice and helps clear his childhood friend Roman Pearce's criminal record.