New 20++ Children's Sacha Baron Cohen Kids. He is known for his creation and portrayal of fictional satirical characters, including ali g, borat sagdiyev, brüno gehard and admiral general aladeen. In sacha baron cohen's provocative new comedy show, u.s. He is best known for voicing king julien xiii in the madagascar franchise, and for respectively portraying the titular characters of da ali g show, ali g indahouse, borat, brüno, the dictator.