The doctor is a time lord from the planet gallifrey he is over 2000 years old, has two hearts, travel through time with his tradis (his time machine , has 12 regenerations and has a sonic screwdriver that can do anything except open wood doors.
the 11th doctor
my favorite regeneration
his home planet
his time machine tardis means (T)ime (A)nd (R)elevant (D)imension (I)n (S)pace