Murray said that he did not plan for Alazraqui to voice Lazlo according to him the arrangement simply occurred. Originally, Murray wanted Lazlo to carry a strong Brazilian accent, but when Cartoon Network asked Murray to choose only one character to carry a strong accent, Murray opted for Raj and gave Lazlo an Americanized voice. Murray wrote on his website that Lazlo's parents moved to the United States to start a fruit company, allowing Lazlo to learn English. According to Murray, when he thought about Lazlo's personality, a spider monkey came to his mind. As he developed the concept, Murray believed that a children's book could not contain the stories and ideas, so he decided to create a television show. Joe Murray, creator of Camp Lazlo, originally created Lazlo for a children's book concept. He is the main protagonist of the series. Lazlo "goes where the wind blows" by his own statement. Lazlo has a really serious case of coulrophobia. Carlos Alazraqui voiced Lazlo (like Rocko from Rocko's Modern Life).
Often annoying Edward, he is a very happy-go lucky monkey. He is an adventurous, optimistic and quirky Brazilian spider monkey. He is originally from Scoutmaster's cabin, but moved to Jelly. Lazlo is a Brazilian spidermonkey, a Bean Scout and the titular protagonist of the show.