Tenth Doctor

Biography
The Tenth Doctor came into existence after the Ninth Doctor absorbed all the energy of the Time Vortex, an act which began destroying every cell in his body, triggering a regeneration.

Characteristics
He has sideburns, though he at first thought for a moment this might be very bad skin. He also has a mole between his shoulder blades.

Habits and Quirks
Like his predecessor, he's not overly fond of Rose's mother Jackie, likening her to a "nutloaf."