Doctor Who

Matt Smith: David Tennent

Matt Smith

Matt Smith is the eleventh doctor

David Tennent

David Tennent is the tenth doctor.
Doctor Who 11th Doctor (Matt Smith) Theme Song (I am the Doctor)
This is the 11th doctors sonic screwdriver.
This is the 10th doctors sonic screwdriver.
The Tenth Doctor Regenerates - David Tennant to Matt Smith - Doctor Who - BBC