From NASA:[3] The commander of the Soyuz was Aleksandr Kaleri (RKA).

During the stay on the station Michael Foale was the ISS Commander, while Aleksandr Kaleri was the engineer.

Pedro Duque performed some ESA sponsored science experiments under the mission name Cervantes and then returned with the ISS 7 crew on Soyuz TMA-2.

The backup crew was William McArthur, Valery Tokarev and André Kuipers.

Foale and Kaleri along with André Kuipers, the third seater from TMA-4 landed on April 29, 2004, near Arkalyk, Kazakhstan.