Paul Walker plays Brian O'Conner in 2 Fast 2 Furious (2003), the former LAPD officer now racing for money in Miami, who agrees to go undercover against Carter Verone in return for a clean record. Walker is the only lead who returns from The Fast and the Furious (2001), where TMDB also credits him as Brian O'Conner, and he takes top billing again in the sequel.
Tyrese Gibson plays Roman Pearce in 2 Fast 2 Furious (2003), the childhood friend Brian O'Conner insists on bringing onto the federal job even though Roman does not trust him. Grantland reports that Universal commissioned a script without Vin Diesel's character, and that version wrote Roman as Brian's childhood friend. Gibson told Yahoo Entertainment that he and Paul Walker first met over dinner in Los Angeles before the Miami shoot.
Eva Mendes as Monica Fuentes
Eva Mendes plays Monica Fuentes in 2 Fast 2 Furious (2003), a customs agent already working undercover inside Carter Verone's circle, who helps Brian O'Conner and Roman Pearce get close to him. She is third billed, and this film is her first appearance in the franchise. The character comes back later, since TMDB lists Mendes as Monica Fuentes, uncredited, in the Fast Five (2011) cast.
Cole Hauser as Carter Verone
Cole Hauser plays Carter Verone in 2 Fast 2 Furious (2003), the drug lord federal agents want Brian O'Conner to help bring down, which makes him the villain of the film. He is fourth billed on TMDB, one place ahead of Ludacris, and like most of the ensemble he is new to the series, as he does not appear in the credits of the 2001 film.
Ludacris plays Tej Parker in 2 Fast 2 Furious (2003), his first appearance in the franchise. He told Entertainment Weekly that he was on tour with Eminem when the call came, got the pages about 15 to 20 minutes before going on stage and recorded the audition on tape, learning the next day that he had the part. His only earlier acting credit was a cameo in The Wash.
James Remar plays Agent Markham in 2 Fast 2 Furious (2003), credited sixth, on the federal side of a story in which agents offer Brian O'Conner a clean record in exchange for going undercover. Remar is new to the franchise here, as he is not in the credits of the 2001 film, and Markham is one of three named agents in the TMDB credits, alongside Bilkins and Dunn.
Thom Barry as Agent Bilkins
Thom Barry plays Agent Bilkins in 2 Fast 2 Furious (2003) and is one of the few actors to return from The Fast and the Furious (2001), where TMDB credits him in the same role. His return gives the sequel a familiar face on the agents' side of the story, and he is credited seventh here, directly after James Remar.
Michael Ealy as Slap Jack
Michael Ealy plays Slap Jack in 2 Fast 2 Furious (2003), credited eighth, and the credits give his character a companion part as well, Slap Jack's Girlfriend, played by Sincerely A. Ward. Ealy makes his franchise debut in this film, since his name does not appear in the TMDB credits for the 2001 original.
Mark Boone Junior plays Detective Whitworth in 2 Fast 2 Furious (2003), credited ninth, one of several police roles in a cast that also lists a detective, a police chase cop and a police chopper pilot. He is new to the franchise in this film and does not appear in the credits of the 2001 original.
Devon Aoki as Suki
Devon Aoki plays Suki in 2 Fast 2 Furious (2003), credited tenth, a role the credits extend with a companion part, Suki's Girl, played by Nievecita Dubuque. Aoki makes her first appearance in the series here, as one of the new faces billed in the top ten alongside returning actors Paul Walker and Thom Barry.
Roberto Sanchez as Roberto
Roberto Sanchez plays Roberto in 2 Fast 2 Furious (2003), credited eleventh, a character who shares the actor's first name in the credits. Sanchez is new to the franchise in this film, and he is billed directly after Devon Aoki and ahead of Mo Gallini in the TMDB credits.
Mo Gallini as Enrique
Mo Gallini plays Enrique in 2 Fast 2 Furious (2003), credited twelfth on TMDB. Gallini is new to the franchise, like most of the 2003 ensemble, and he is followed in the billing by Edward Finlay as Agent Dunn and Jin Au-Yeung as Jimmy.