Stan Kirsch, who played Monica's boyfriend who she later discovers is in high school on TV series 'Friends', died on January 11 at age 51.
Kristyn Green, who co-founded the Los Angeles-based Stan Kirsch Studios with her husband, confirmed in an email Kirsch died.
Kirsch was also known for his six-season stint on 'Highlander' and a guest spot on 'General Hospital' the U.S. Today reported.
His more recent Hollywood credits fell under the category of acting coach, including for TV shows "Drop Dead Diva" and "Grimm."
