In 28 Days Later, Cillian Murphy plays a bicycle courier named Jim.
Jim awakens from a coma in a London hospital 28 days after the release of the Rage virus. He discovers that the city has been largely abandoned and soon meets survivors Selena and Mark. Their journey forms the emotional and narrative center of Danny Boyle’s 2002 film.
The character’s short name is sometimes confused with names from related films. Don is a major character in 28 Weeks Later, the 2007 sequel, while Frank is the father of Hannah in 28 Days Later. Jim belongs specifically to the first film and is played by Cillian Murphy.
28 Days Later helped revive mainstream interest in fast-moving infected humans. Although the creatures are commonly called zombies in casual discussion, the film presents them as living people infected by Rage rather than reanimated corpses. This distinction is important when comparing it with Romero-style undead films.