The gang over at Forbidden Planet had a great Doctor Who reveal this week that ties into the recent 50th Anniversary:

The ‘Other Doctor’ is the Doctor’s dark chapter, an _hitherto unknown incarnation whose existence he has spent centuries repressing, a secret he wants no one to know of. He is a relic of the past, part of the great Time War, when he spent centuries fighting alongside his fellow Time Lords against the Daleks and made the final decision to end it with a desperate act that cost that incarnation the right to use the name “Doctor”. This haunted and battle-worn Other Doctor is finally forgiven after helping find a new solution to end the war, giving the Eleventh Doctor a new purpose as he heads into further adventures.

The Other Doctor, as seen in the 50th anniversary episode: “The Day of the Doctor” with “the moment” accessory and alternate 8th Doctor head.
Ages 5+. Action Figure measures 5 inches tall.