The comic was an unlikely choice to play the Treasure Island character in a new movie version of Robert Louis Stevenson's classic adventure - and he was a little wary of going bald for the role.
He tells TV Guide magazine, ""Not everyone has the proper skull to pull it off but, unfortunately, you don't know that until you have shaved your head and by then, well, it's too late.
""But I am proud to say my skull turned out to be quite lovely, thank you very much.""
Having shaved off his hair, Izzard faced another hurdle - he had to get about on one leg.
He adds, ""He runs, he falls, he can't get up. We play this leg thing for real, not just for looks. It was bloody hard, but I kept battering through. And, thanks to a good osteopath, I survived.""