Mushroom Referee
From the Super Mario Wiki
The Mushroom Referee is a Mushroom man who works for the Mushroom Wrestling Federation.
The Mushroom Referee appears as a minor character in The Adventures of Super Mario Bros. 3 episode "Tag Team Trouble". When he is not hosting wrestling matches, he is apparently in charge of signing people up for them, as can be shown in the episode itself.
The Mushroom Referee hosted the Tag Team Wrestling Tournament which started before he was ready due to the fact that Cheatsy rang the bell early. Despite his job, the referee didn't seem to care about any of the tricks that the Sledge Bros. were pulling on Mario and Luigi during the match, as he almost declared the Sledge Bros. the winners.
He also didn't mind that the Mario Bros. made a comeback by using the Starmen that Princess Toadstool had brought them, which they used to defeat the Sledge Bros., as well as Bowser and Cheatsy.
With their opponents down, the referee declared Mario and Luigi the winners of the match. Before the referee could award them with their prize money, Toad took it right out of the referee's hands, as he was in a hurry to use the money in order to resolve a mixup that never even happened.
