Which actress played the adult version of Murph in Christopher Nolan’s Interstellar?

Jessica Chastain played the adult version of Murph in Christopher Nolan’s Interstellar.

Murph is the daughter of Cooper, the astronaut at the center of the story. Mackenzie Foy plays Murph as a child, while Chastain portrays her as an adult scientist working to solve the gravitational problem that could allow humanity to leave a dying Earth.

The character’s relationship with Cooper gives the film its emotional structure. Cooper leaves Earth to join the space mission, and the time effects of relativity mean that their separation is experienced differently by father and daughter. Murph eventually works with Professor Brand and discovers the information needed to complete the evacuation plan.

Chastain shares the adult role with Ellen Burstyn, who plays Murph at an older age. This three-stage casting is important because the story spans decades on Earth while the astronauts experience time differently during their journey.