He is married to Irina Tokareva (née Nikolayevna), with whom they have two children: a daughter, Olya, and a son, Ivan, and reside at Star City, Moscow Oblast.

His mother, Lidiya, lives in the city of Rostov, Yaroslavl Region and his father, Ivan Pavlovich, died in an auto accident in 1972.

On flight day 2, Tokarev temporarily stowed some logistics transfer items stored on the shuttle's middeck, in the Spacehab module to provide more room for the spacesuit checkout activities.

On 29 May Tokarev and NASA astronaut Ellen Ochoa temporarily stowed docking targets and lights and checked hatch seals in the narrow passageway inside the Pressurized Mating Adapter (PMA 2).

The next day, he and Canadian astronaut Julie Payette traveled to the Zarya module and began maintenance activities on the storage batteries located under the floorboard.

[7] Tokarev was the flight engineer for the Expedition 12 crew on the ISS,[8] arriving at the station aboard the Soyuz TMA-7 spacecraft on 3 October 2005.

The Soyuz TMA-7 carrying Tokarev, NASA astronaut William McArthur and U.S spaceflight participant Gregory Olsen lifted off from the Baikonour cosmodrome at 03:55 UTC on 1 October.

Medical experiments he performed aimed at finding the effects of extreme space conditions on humans and blood cells.

Tokarev, McArthur and Brazilian spaceflight participant Marcos Pontes returned to Earth inside the Soyuz TMA-7 capsule on 8 April 2006 at 23:48 UTC.

During the 5 hours, 22 minutes spacewalk, He and NASA astronaut William McArthur installed a new camera assembly and jettisoned the Floating Potential Probe.

In order to have daylight for the Floating Potential Probe (FPP) jettison, they moved on to the retrieval of a failed remote joint motor controller.

The dysfunctional FPP had been designed to measure the space station's electrical potential and compare it to the surrounding plasma.

He and McArthur donned in red-striped Orlan suits, ventured outside the ISS at 5:44 p.m. EST from the Pirs docking compartment airlock to begin the spacewalk.

The SuitSat-1 had recorded greetings in six languages to ham radio operators for about two orbits of the Earth before it stopped transmitting The suit was expected to enter the atmosphere and burn up in a few weeks after the spacewalk.

This article incorporates public domain material from websites or documents of the National Aeronautics and Space Administration.