Laddi, born Þórhallur Sigurðsson, is a famous Icelandic comedian and entertainer. He is known for comedy music and comedy acting. Laddi has dubbed many characters into Icelandic, in films and TV shows like The Smurfs and feature films like Aladdin. He is most famous for the unforgettable characters that he has created on his own and it is like they almost have a mind of their own such as Eiríkur Fjalar.
He started off in a comedy duo with his brother Haraldur Sigurðsson, they were known as "Halli og Laddi".
He was in the music video " Triumph of a Heart" with Björk.