That was over 11 years ago in 2010.
Today he is 50, and has starred in 70 movies in total, 32 since How to Train Your Dragon was released.
In How to Train Your Dragon, I think David Tennant looks:
How to Train Your Dragon scores 7.6 out of 10 on The Movie Database.
David Tennant's first acting role was as 'Drunk Undergraduate' in Jude, released in 1996 when he was 25.