Bobby Lee (born 1972 in San Diego, California) is a Korean-American actor. He currently starrs in the television series MADtv, where he plays most of the Asian roles on the show. Among his recurring characters is the Average Asian who grows increasingly aggravated at stereotypes of Asians, and an impersonation of North Korean dictator Kim Jong-Il.
His most famous character, however, is Bae Sung, the Korean-Japanese-Chinese-American, who claims be multilingual, but in actuality speaks the "Dumb-ass language".
Note: The character of Bae Sung does "know" a little of each language his claims to speak, but Bobby Lee only knows Korean. Bae Sung actually speaks only Korean, but the caption marks it as "speaking in Japanese/Chinese".
Bobby Lee at IMDB.com