- (1999) TV commercial for E*Trade.
- (December 1, 1995) Release of his book, "To the Stars: The Autobiography of George Takei, Star Trek's Mr. Sulu" by Pocket Books, an imprint/division of Simon & Schuster, Manhattan, New York City, New York, USA; (ISBN-13: 978-0671890094 and ISBN-10: 0671890093).
- (Late 1960s-early 1970s) 3 years as producer-host of Expression: East/West, a public affairs show on KNBC, Los Angeles.
- (September 15, 1987) Release of "Star Trek: Strangers from the Sky" by Margaret Wander Bonanno; with narration by George Takei; on Audio, Cassette - Abridged, Audiobook; by Simon & Schuster Audio, Manhattan, New York City, New York, USA (ISBN-13: 978-0671647186 and ISBN-10: 0671647180).
- (Early 1990s) Provided the voice of his character, Captain Hikaru Sulu, for several audio adventures based upon the adventures of the USS Excelsior.
- (October 2005 - December 2005) "Equus," written by Peter Shaffer with George Takei (portraying Dr. Martin Dysart) in the cast; at the East/West Players Theater, Los Angeles, California, USA.
- (January 1991 - February 1991) "The Wash," written by Philip Kan Gotanda; with George Takei (portraying Sadao) and Sab Shimono (portraying Nobu) in the cast; at the Mark Taper Forum, Los Angeles, California, USA.
- (1987) TV commercial, promoting Star Trek (1966), for KOKI-TV Fox 23 in Tulsa, Oklahoma, USA.
- (2009) TV commercial for Chevrolet vehicles (voiceover).
- (2010) TV commercial, "Oh My!," for Sharp televisions.
- (2010) TV commercial "Sharp Quattron," quad pixel televisions, for Sharp.
- (March 1979) Release of his book, "Mirror Friend, Mirror Foe," a novel; written by George Takei and Robert Aspirin; published by Playboy Publishing in Chicago, Illinois, USA (ISBN-10: 0441533817 ISBN-13: 9780441533817).
- (1990) Audiobook: Narrated audio book for Star Trek IV: The Voyage Home (1986).
- (2011) TV commercial, with Patty Duke for SocialSecurity.gov.
- (November 2012) TV commercial "Cheermageddon" for Old Navy Clothing Stores.
- (April 19, 1979) Guested on the daytime program "Zap" also appearing were singer Bob McBride and Dr. Kathleen Sommer.
- (August 2014) TV commercial for Rooms To Go.
- (2015 - 2016) "Station Break" TV commercial, "My TV 33, Oh My!" for WBFS-TV, Miami, Florida, USA (voiceover),
- (2012 to 2013 Winter) The musical, "Allegiance-A New American Musical," was performed in a world premiere production at the Old Globe Theatre in San Diego, California. Jay Kuo was composer and lyricist. Marc Adler, Jay Kuo and Lorenzo Thione wrote the book. Stafford Arima was director. Barry Edelstein was artistic director.
- (2019) The graphic autobiography, "They Called Us Enemy" with Justin Eisinger, and Steven Scott. It recounts Takei's early life with a particular focus when his family was interned along with other Japanese-Americans during World War II.
- (2012) Allegiance a musical about the Japanese American relocation experience in which George Takei played two parts a 442nd veteran and the veteran's grandfather.
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