Kirsch, who was best known for his role as Richie Ryan on Highlander: The Series from 1992 to 1997, died on Jan. 11. His death was ruled a suicide. Kirsch also had a memorable guest role on Friends in 1995, playing Monica's boyfriend who turns out to be a high school student. Highlander's official Facebook page mourned Kirsch's death, writing: "Without Stan Kirsch, Highlander: The Series would have been far less. He brought a sense of humor, kindness and youthful enthusiasm to the character of Richie Ryan for six seasons. ... Beyond Highlander: The Series, Stan Kirsch was an accomplished acting coach. We have heard first-hand testimonials from many of his students; all of them having considered Stan an incredible teacher and a gift of a human being."