Jeff Dunham is an American ventriloquist, comedian, and actor known for his unique style of comedy that combines puppetry with stand-up. He gained fame through his television specials and live performances, showcasing a variety of characters, including Achmed the Dead Terrorist and Walter. Dunham's career began in the 1980s, and he has since released several successful comedy specials and DVDs. His performances often involve humorous interactions with his puppets, which have become iconic in popular culture. He has a significant following on social media and has toured extensively around the world.