John de Lancie (born March 20, 1948) is an American actor. He has been active in screen and television roles since 1977 and has been featured for several recurring roles on American television series, including Q in Star Trek: The Next Generation, Star Trek: Deep Space Nine and Star Trek: Voyager, Colonel Frank Simmons in Stargate SG-1, Donald Margolis in Breaking Bad, and Discord in My Little Pony: Friendship Is Magic.
John de Lancie has built a filmography of 20 credits over a career spanning from 1974 to 2020.
John de Lancie's most notable role to date came in Breaking Bad (2008), where he played Donald Margolis. He also appeared in Crank: High Voltage (2009) as Fish Halman. Most recently appeared in Gamer (2009) as Chief Of Staff.
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