Before David Tennant joined "Doctor Who" in 2004 (via Mental Floss), he narrated the popular children's book "How To Train Your Dragon." First published in 2003, Cressida Cowell introduced readers to the world of Vikings and dragons through Hiccup Horrendous Haddock the Third, heir to the Hairy Hooligan clan throne. But to become a true Viking, he must pass the ultimate test: catching a dragon, per The Story Sanctuary. Cowell's novel captured the imagination of children across the world and went on to spawn a series of 12 books and even more spin-offs (via RadioTimes) — the majority of which Tennant narrated.
"He does every character, going from a Scottish accent to Irish and American within seconds. It's amazing," Cowell told The Sun. "We were so lucky to get him before Doctor Who, but he's been so loyal, and he has returned to do them ever since." Describing the actor as "so smart" and "such a very bright guy and a brilliant actor," Cowell couldn't think of anyone better to take Tennant's place.
