Yes he is. In one of the chats Craig Bartlett (the creator of Hey Arnold) stated that Robert Simmons (aka Mr. Simmons) is gay.
Mr. Win
Randy Travis
Hey Arnold - 1996 Helga's Masquerade Mr- Green Runs 5-2 was released on: USA: 11 March 2000
Hey Mr. D.J. was created in 1993-08.
Mr Gay Sweden was created in 1999.
Mr Gay Ireland was created in 2005.
Mr Gay Europe was created in 2005.
Arnold Schwarzenegger
Arnold Schwarzenegger
Arnold Schwarzenegger
Arnold Schwarzenegger
Arnold Schwarzenegger