
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.

Family Guy
TV • 1999

CSI: Crime Scene Investigation
TV • 2000

The Mentalist
TV • 2008

Stargate SG-1
TV • 1997

Breaking Bad
TV • 2008

Crossing Jordan
TV • 2001

The West Wing
TV • 1999

Charmed
TV • 1998

Without a Trace
TV • 2002

Star Trek: The Next Generation
TV • 1987

Star Trek: Voyager
TV • 1995

Murder, She Wrote
TV • 1984

The Closer
TV • 2005

MacGyver
TV • 1985

Star Trek: Deep Space Nine
TV • 1993

Young Justice
TV • 2010

The Practice
TV • 1997

The Practice
TV • 1997