Why did they change David Tennant?

Scottish actor David John Tennant He rose to prominence as the ninth Doctor in the BBC science fiction series Doctor Who. He also played Giacomo Casanova in the BBC comedy-drama series Casanova.

Tennant has also worked extensively as a voice actor and on stage, including a role as Hamlet in a 2008 production and as Scrooge McDuck in DuckTales.

Tennant began his professional acting career while still in high school. When he was 16, he appeared in a Glasgow Health Board anti-smoking film that aired on television and was also shown in schools.

Why did they change David Tennant?

Tennant was not changed he left the show. Tennant announced his departure from Doctor Who live on ITV during the 2008 National Television Awards.

The Scottish actor didn’t want to “outstay” his welcome after making the character his own, saying: “It would be very simple to cling on to the TARDIS console forever, and I feel that if I don’t take a deep breath and make the decision to move on now, then I simply never will.”