Professor Hi Laryus
From superman.nu: Supermanica
Professor Hi Laryus: The Funniest Man on Earth
An alias employed by Superman when he dons a disguise and puts on a free vaudeville act for the people of Metropolis, billing himself in a flood of advance publicity as “The Funniest Man on Earthâ€, as part of his plan to defeat the Prankster (Act No. 95, Apr 1946: “The Laughing Stock of Metropolis!).