Producer Jerry Weintraub said of the casting that "Brad Pitt is perfect as Rusty...He's not only a cool guy, he has that devil-may-care attitude that Rusty has." For Ocean's Thirteen, Weintraub noted, "'People liked the disguises from the first movie, so we decided to bring them back...Brad figured out this costume and the long hair.' He's posing as a scientist who specializes in earthquakes."
Rusty is Danny’s right-hand man. His skills are used more in the planning phase of the heists, although he takes on disguises in Ocean's Eleven and Ocean's Thirteen. His involvement in the planning stage is used as a gag in Ocean's Twelve. The gang is discussing being dubbed "Ocean's Eleven" and when asked who they turn to when they have issues, they all say Rusty. Ironically, his former girlfriend Isabel is what gets the team in trouble in Ocean's Twelve, despite Rusty condemning Danny’s efforts to win back an ex-wife in Ocean's Eleven.
A running gag in Ocean's Eleven was his consistent eating of fast food in many of his scenes. This gag is passed on to Ocean's Twelve and Ocean's Thirteen, where he is also either eating or drinking in many scenes.