Expedition 15 is the 15th expedition to the International Space Station (ISS). The first two crew members, Fyodor Yurchikhin, and Oleg Kotov are scheduled for launch on April 7, 2007, aboard Soyuz TMA-10, together with spaceflight participant Charles Simonyi. If STS-118 launches on schedule, they will be joined by Clayton Anderson, who will be launched aboard the Space Shuttle Endeavour on June 28. They will also be joined by Daniel M. Tani who will be launched aboard Atlantis on STS-120 on September 7.

Second part (June to October 2007)

• Fyodor Yurchikhin (2) Commander - Russia
• Oleg Kotov (1) Flight Engineer - Russia
• Clayton Anderson (1) Flight Engineer - United States