John Sherwood de Lancie, Jr. (born March 20, 1948) is an American actor, director, producer, writer, educator, sailor, voice artist, and comedian, best known for his role of Q in Star Trek: The Next Generation ((1987–present)) and as the voice of Discord in My Little Pony: Friendship Is Magic (2010–2019). He is also known for his quite deep, resonant voice. De Lancie performed in Days of Our Lives (1982–1986; 1989–1990) as Eugene Bradford.
De Lancie was featured in several roles on television series, including Frank Simmons in Stargate SG-1 (2001–2002) and Donald Margolis in Breaking Bad (2009–2010). He is noted for his public support of bronies of the My Little Pony: Friendship Is Magic fandom.