Co-authored the "Star Trek: The Next Generation" novel "I, Q" with Peter David
Narrated a documentary entitled "Deadly Bugs" for Discovery Channel
Together with Leonard Nimoy (Mr. Spock), he founded the audio-book-series "Alien Voices".
Early 1990s: Wrote an issue of the Star Trek: The Next Generation comic book for DC Comics.
1999: Co-starred with Leonard Nimoy in the Alien Voices audio play "Star Trek: Spock Vs. Q".
Star Trek: Spock vs. Q (Alien Voices production) (1999) as Q - CD-Audio / Live performance
Star Trek: Spock vs. Q - The Sequel (Alien Voices production) (2000) as Q (referred to as Spock vs. Q - Armageddon Tonight on CD) - CD-Audio / Live performance
(April 2005) Played Jeffrey in "A Naked Girl on Appian Way" play by Richard Greenberg (Segerstrom Stage, South Coast Repertory, Costa Mesa, California, USA).
TV commercials for Compaq computers
(2000, October - November) Starred as Marc in the Yasmina Reza play "Art" at the South Coast Repertory, Costa Mesa, California, USA.
TV commercial, promoting "Star Trek: The Next Generation" for K.O.K.I.-TV Fox 23 in Tulsa, Oklahoma (1987).
(1987) TV Commercial: Vick's Formula 44 cough suppressant