Masatoshi Hamada (浜田 雅功), nicknamed Hama-chan (浜ちゃん), is a Japanese comedian best known as the tsukkomi half of the owarai duo Downtown alongside Hitoshi Matsumoto.

Hamada is frequently seen whacking Matsumoto and other celebrities on their heads, whether it be with his hand, a paper fan, or whatever he is holding at the moment.

He has a notoriously quick temper and is prone to snapping at others, including overzealous fans who bother him on the streets.

Jimmy Onishi during his "24 hours Long interview" for Gaki no tsukai even admitted that he got on with Hamada the best since "he was the most normal" of the cast.

Named after a famous song by Kyu Sakamoto, it ran from April 21 to July 30 and featured many other Yoshimoto Kōgyō geinin, including Cocorico.

[citation needed] He was the voice of the host of the sole Japanese release of the American trivia quiz video game series You Don't Know Jack.

In the 1990s, Hamada was also part of a musical duo with Tetsuya Komuro called H jungle with t [ja] (where the "H" stands for Hamada and the "t" stands for Tetsuya) and produced several songs, including their most popular song, "Wow War Tonight", which sold over 2 million copies and ranked number 2 in the top 100 Oricon singles of 1995.

In a March 2007 episode of Gaki no Tsukai, when asked what he would save first in his house if an earthquake occurred, his reply was "the dog.

[18] In 2017 Masatoshi dressed in blackface as Eddie Murphy from the film Beverly Hills Cop for the 2017 New Year's Eve special of Downtown no Gaki no Tsukai ya Arahende!!

A-san said they met through a mutual acquaintance and had several secret meetings, during which Hamada provided financial support.