He does not have a public e-mail address. If a fan managed to find out his address and e-mailed him he would probably change his address anyway, to protect his privacy. You can write to him via his agent.
ME
david tennants hobby is acting.
john david john tennant
David Tennant's brother's name is Blair.
Brown
The Proclaimers.
Paul Smith.
Doctor Who and Hamlet.
Karen and Blair.
Purple. :3
Scotland
Scotland