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).

He performed in numerous stage productions, at venues such as the American Shakespeare Festival and the Mark Taper Forum, and established a successful career in film and television.

[5] In a 2012 interview, he said that he recalled his original audition, after which Roddenberry approached him, touched him on the shoulder, and said, "You make my writing sound better than it is.

[14][15][16] He performed and directed for Los Angeles Theater Works, the producing arm of KCRW-FM and National Public Radio, where the series The Play's the Thing originated.

Ironically, de Lancie has stated in an interview that, in preparation for his role as Discord, he did not draw from his past experience as Q.

[19] De Lancie mentioned during a 2013 convention panel that his voice recordings of Discord are slightly sped up and lose their deep bass sound.

His other animated television roles included The Angry Beavers, Extreme Ghostbusters, Invader Zim, Duck Dodgers, Max Steel, Duckman, Young Justice,[14] and DC Super Hero Girls as Mr.

[21] De Lancie co-wrote the Star Trek novel I, Q with Peter David, as well as co-writing the novel Soldier of Light (with Tom Cool).

[23] In 1996, along with Leonard Nimoy and writer-producer Nat Segaloff, de Lancie formed and recorded Alien Voices, a collection of audio dramas based on classic science fiction and fantasy stories, such as The Time Machine and The Lost World.

[24] He provided the narration for the world premiere of Lorenzo Palomo's The Sneetches and Other Stories (based on the book by Dr. Seuss) with the Oberlin Conservatory Orchestra.

[25][26] He wrote and directed ten symphonic plays, which were produced with the Milwaukee, St. Paul Chamber, Ravinia, Los Angeles, and Pasadena Orchestras.

[16] De Lancie was the writer, director and host of First Nights, an adult concert series at the Walt Disney Concert Hall with the Los Angeles Philharmonic,[15][16] based loosely on the book of the same name by Thomas Forrest Kelly, which explored the life and music of Stravinsky, Beethoven, Mahler, Schumann, and Prokofiev.

[16][dead link‍][citation needed] In September 2019, de Lancie narrated as "Forever of the Stars" in the first ever live performances of Ayreon's Sci-Fi concept album Into the Electric Castle.

[27] While on stage at the 2012 Ottawa ComicCon, de Lancie announced that he had made plans to co-produce a documentary about "bronies" (older, usually male teenage and adult fans of My Little Pony: Friendship Is Magic).

[28] He started a Kickstarter campaign to help fund the documentary, since titled Bronies: The Extremely Unexpected Adult Fans of My Little Pony.

[1][30] De Lancie is an experienced sailor, spending time on the Pacific Ocean, which he said "sometimes involves very terrifying experiences.

Rather than developing a religious outlook, he became fascinated by an ever-changing world: "I'm wondering if one of the things at the core of believing in God, or not, has to do with change.

And the words I spoke were written by men and women ... My creators took great care in exalting me to the position I hold today.