White (Tom Hanks) who is the band’s second manager, Faye Dolan (Liv Tyler) Jimmys girlfriend and the bands "costume mistress", Tina (Charlize Theron) Guys girlfriend, Guy Patterson (Tom Everett Scott) the drum player in the band and Steve Zahn (Lenny Haiser) the guitarist and backing vocals of the group.
In the year 1964, Guy Patterson (Tom Everett Scott) is a jazz drummer working at his family’s Erie, Pennsylvania Appliance store. Because the regular drummer of the band (Giovanni Ribisi) has broken his arm, Lenny Haise (Steve Zahn) and Jimmy Mattingly (Johnathon Schaech) approach Guy Patterson to ask him to sit in with their band at the annual Mercyhurst College talent show (Maslin, 1). During rehearsals, the group carefully rehearses a sensational ballad titled “That Thing You Do.” Faye Dolan (Liv Tyler), Jimmy’s girlfriend suggests that the group call themselves “The Oneders”. She is inspired by Guy’s great performance at the rehearsal. After a brilliant rehearsal, Guy messes up in the talent show by playing a faster tempo for “That Thing You Do! than in rehearsals. The audiences react negatively to the song, but Oneders eventually emerge the winner of $100 top prize. After the talent show, the group started playing gigs, they played at a local pizza parlor as their first gig. Maslin (1) reveals how they started selling a single of “That Thing You Do! with the help of Guy’s Uncle Bob (Chris Isaak). The single attracted the attention of Phil Horace (Chris Ellis) the local manager.
Horace signs the group to bigger gigs and they are given airplay of the single. The band is offered a contract with Play-Tone Records by Mr. White (Hanks), they sign the contract and change their famous band name to “The Wonders” in order to avoid confusions. The group then is faced with internal disagreement which leads to their fall. Jimmy