Question: What is the stage name for rapper Jonathan Park who is a member of Thirsty Fish?
Context: Sasse is the stage name used by Finnish electronic music producer Klas Lindblad.  Based out of Berlin, Germany since 1999, Lindblad has also recorded under the monikers Freestyle Man, Cocamoto Exclusivo, Morris Brown, Sassomatic, Thirsty Monk and Winston Fletcher.  He was also a member of electronic act Mr. Negative.  Sasse's base-genre falls into the IDM category but also incorporates the styles of house music, electro, techno, Giorgio Moroder-influenced disco and Italo disco. Jennifer Lee, better known by her stage name TOKiMONSTA, is an American producer and DJ from Los Angeles, California.  She has collaborated with Thirsty Fish, Kool Keith, MNDR, and Anderson Paak.  She has also remixed tracks by Andreya Triana, Daedelus, Jodeci, and Justin Timberlake. Jonathan Park (; born February 18, 1986), known professionally as Dumbfoundead, is an American rapper of Korean descent.  He originates from the Koreatown neighborhood of Los Angeles, California. Lee Byung-yoon (Hangul: 이병윤; born June 15, 1993), better known by his stage name BewhY (Hangul: 비와이), is a South Korean rapper and member of '$exy $treet & Yello Music crew'.  Initially he chose 'BY' as a stage name, but changed it to 'BewhY' to give a meaning to the name.  He won first place on Show Me the Money 5 in 2016.  Rapper C Jamm is his old friend from high school and Bewhy is also well known for devout Christianity. Psychosiz is an American video game designer and rapper.  He is a member of hip hop groups Thirsty Fish, Swim Team, and Customer Service. Lim Sung-bin (Hangul: 임성빈; born September 12, 1987), better known by the stage name Beenzino (Hangul: 빈지노), is a South Korean rapper currently signed under Illionaire Records.  His stage name is a play on that of Boston rapper Benzino, combined with "빈" (pronounced "been") from his birth name.  Beenzino made his first official public appearance at Dok2's Hustle Real Hard Concert on June 5, 2011 and has since released three solo albums, as well as other works in collaboration with hip hop producers Primary and Shimmy Twice, and as the duo Hot Clip with South Korean rapper Beatbox DG.  He is noted for his melodic style of rapping. Carlos Coy (born October 5, 1970), better known by his stage name South Park Mexican, is an American rapper, founder of Dope House Records, and convicted sex offender.  His stage name is derived from the South Park neighborhood in Houston, Texas where he was raised. Michael W. Eagle II (born November 14, 1980), better known by his stage name Open Mike Eagle, is an American alternative hip hop artist.  Originally from Chicago, Illinois, he is now based in Los Angeles, California, where he is a member of the hip hop collective Project Blowed.  He is also a member of Thirsty Fish and Swim Team. Chidera Anamege, now known by his stage name Chiddy Bang is an American hip hop recording artist.  Prior to its breakup, Chiddy Bang was an American hip hop duo consisting of Anamege, under the stage name Chiddy, and Noah Beresin, under the stage name Xaphoon Jones.  The duo was introduced by former band member Zachary Sewall in late 2008 while the two were studying at Drexel University, in Beresin's hometown of Philadelphia.  Anamege's sound is based on the fusion of hip hop and alternative using samples from artists such as Ellie Goulding, Radiohead, Sufjan Stevens, Passion Pit, MGMT, Matt and Kim, and Yelle.  In 2013, Beresin left the group to focus on producing and Anamege became a solo artist, with Beresin playing the role as frequent collaborator.  Since departing from the group, Beresin has changed his stage name to Noah Breakfast. Thirsty Fish is an American alternative hip hop trio based in Los Angeles, California.  It consists of the rappers Dumbfoundead, Open Mike Eagle and Psychosiz.  Their second album, "Watergate", was released on Mush Records in 2011.
Answer: Dumbfoundead