Charles Martinet
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.[1]