John Sherwood de Lancie, Jr. (born March 20, 1948) is an American actor, director, producer, writer, educator, and comedian, best known for his role as the alien Q in various Star Trek series (1987–present), beginning with Star Trek: The Next Generation. His other television series roles include Eugene Bradford in Days of Our Lives (1982–1986; 1989–1990), Frank Simmons in Stargate SG-1 (2001–2002), Donald Margolis in Breaking Bad (2009–2010), Agent Allen Shapiro in Torchwood (2011), as well as the voice of Discord in My Little Pony: Friendship Is Magic (2011–2019). In the 2010s, de Lancie received credit for his public support of bronies of the My Little Pony: Friendship Is Magic fandom. He has become an outspoken secular activist and was a featured speaker at the 2016 Reason Rally and CSICon 2019.
Source: John de Lancie on Wikipedia