Martinet was told by his friend that there was going to be an audition at a trade show in which you "talk to people as a plumber". He went to the audition at the last minute as the casting directors were already putting away their equipment. Charles Martinet walked in and asked, "Can I please read for this?". The directors let him audition and told him, "You're an Italian plumber from Brooklyn". At first Martinet planned to talk like a stereotypical Italian American with a deep, raspy voice (which is how Mario sounded in the Super "Mario Bros. Super Show", "Super Mario Bros. 3" and "Super Mario World"cartoons). He then thought to himself that it would be too harsh for children to hear, so he made it more soft-hearted and friendly, resulting in what Mario's voice is today. Martinet has also stated that he kept on talking with his Mario voice until the audition tape ran out.