The Secret of Humphrey Bogart's Distinctive Voice...

Neatorama presents a guest post from actor, comedi...  ...a trademark lisping way of speaking, caused by a scarred -up area of his mouth. The stories of just how Bog...  ...ut a half-dozen. The first is that he got the lip scars from a beating his father, the very strict Belmon...  ..., Bogart told his friend Da...

http://www.neatorama.com/2012/10/04/The-Secret-of-Humphrey-Bogarts-Distinctive-Voice/