June 26, 1955
Ogden, Utah, U.S.
Watanabe was born in Ogden, Utah. He was in several dramatic productions in high school, both acting and singing. After graduation, Watanabe left Ogden for San Francisco, where he hoped to make his living as a street musician while honing his acting skills.
In 1976, Watanabe's first role was as a member of the original Broadway cast of Pacific Overtures, originating the roles of Priest, Girl, and The Boy. He has since appeared in a number of films and television series, the first of which was The Long Island Four in 1980. He had a starring role in both the film Gung Ho and its television spinoff. In the 1989 movie UHF starring "Weird Al" Yankovic, Watanabe co-starred as Kuni, a karate instructor and abusive host of a TV game show called Wheel of Fish. He later reprised this role on the Weird Al Show. Watanabe appeared on Sesame Street from 1988 to 1991 as Hiroshi and had a recurring role as gay nurse Yoshi Takata on the television drama ER from 1998 to 2002. During the nineties, Watanabe provided the voice for various Japanese characters on the animated television comedy The Simpsons. In 1998 he provided the voice for Ling in the Disney animated film Mulan. He later reprised this role for the 2004 direct-to-video sequel, Mulan II and the 2005 video game Kingdom Hearts II.
Many of Watanabe's characters are caricatured East Asians with heavy accents, though he does not speak Japanese himself. Jason Buchanan wrote for Allmovie, "The character that Gedde Watanabe is most remembered for is Long Duk Dong, the clumsy foreign exchange student in [the 1984 film] Sixteen Candles," a role decried by some Asian-American groups as "stereotypical, racist and part of a long history of Hollywood's offensive depictions of Asian men." "I was making people laugh. I didn't realize how it was going to affect people," Watanabe said in 2008. "It took me a while to understand that. In fact, I was working at the Metropolitan Museum of Art, and I was accosted a couple of times by a couple of women who were just really irate and angry. They asked, 'How could you do a role like that?' But it's funny, too, because at the same time I laugh at the character. It's an odd animal."
- The Long Island Four (1980)
- Sixteen Candles (1984) as Long Duk Dong
- Volunteers (1985) as At Toon
- Gung Ho (1986) as Oishi Kazuhiro
- Vamp (1986) as Duncan
- The Spring (1989) as Matty
- UHF (1989) as Kuni
- Gremlins 2: The New Batch (1990) as Mr. Katsuji
- Boys on the Side (1995) as Steve
- Perfect Alibi (1995) as Det. Onoda
- That Thing You Do (1996) as Play-Tone Photographer
- Psycho Sushi (1997) as Yoshi
- Nick and Jane (1997) as Enzo
- Booty Call (1997) as Chan
- Mulan (1998) as Ling (voice)
- Armageddon (1998) as Asian Tourist (uncredited)
- Frank in Five (1999) as Waiter
- Guinevere (1999) as Ed
- EDtv (1999) as Greg
- Thank You, Good Night (2001) as Cafe Owner
- Slackers (2002) as Japanese Proctor
- On the Couch (2004) as Charlie
- Alfie (2004) as Wing
- Mulan II (2004) as Ling (voice)
- Two for the Money (2005) as Milton
- Fortune Hunters (2007) as Mr. Yu
- Sunny & Share Love You (2007) as Eliza's Dad, The Doctor
- Forgetting Sarah Marshall (2008) as Hotel Manager
- The Onion Movie (2008)
- Not Forgotten (2009) as Agent Nakamura
- Scooby-Doo and the Samurai Sword (2009) as Kenji
- Parental Guidance (2012) as Mr. Cheng
- 47 Ronin (2013) as Troupe Leader
- Gung Ho (1986) as Kaz Kazuhiro
- Booker – "Someone Stole Lucille" (1986), as Max
- Sesame Street (1988), as Hiroshi
- Murphy Brown – "The Bitch's Back" (1988), as Guru Prem
- On the Television – "Babe Watch" and "My Five Dads" (1990), Various
- Grand – "An Obtuse Triangle" (1990), as Taki Mifune
- Down Home (1990) as Tran
- Newhart – "The Last Newhart" (1990), as Mr. Takadachi
- Duckman – "The Mallardian Candidate" (1996)
- Seinfeld – "The Checks" (1996), as Mr. Oh
- ER (1997–2003) as Nurse Yoshi Takata
- Happily Ever After: Fairy Tales for Every Child – "The Little Mermaid" (1997), as Nuri
- The Weird Al Show – "Back to School" (1997), as Kuni
- The Simpsons – "In Marge We Trust" (1997), as Factory Foreman (voice), and "Thirty Minutes Over Tokyo" (1999), as Japanese Father (voice)
- Rugrats (1998) "Chuckie's Duckling/A Dog's Life", as Kangaroo (voice)
- Home Improvement – "Home Alone" (1999), as Nobo Nakamura
- Secret Agent Man (2000) "Uncle S.A.M." episode, as Ling
- Batman Beyond – "Revenant" (1999), as Principal Nakamura and "Untouchable" (2000), as Dr. Suzuki
- L.A. Law: The Movie (2002) as Cyril
- My Wife and Kids (2002) "Diary Of A Mad Teen" episode, as Dr. Phil Ling
- Kim Possible – "Attack of the Killer Bebes" (2002) and "Graduation: Part I" (2007), as Prof. Bob Chen
- What's New, Scooby-Doo? – "Lights! Camera! Mayhem!" (2003), as Vincent Wong (voice)
- Everwood – "Oh, The Places You'll Go" (2005), as Art
- Model Family (2006) as Terrence
- "Gedde Watanabe". The New York Times.
- Ji, Hyun Lim (22–28 June 2001). "Backstage with Gedde Watanabe". Asian Week (Internet Archive). Archived from the original on 4 August 2001. Retrieved 10 February 2013.
- Buchanan, Jason. "Gedde Watanabe Biography". Starpulse.com. Starpulse.com. Retrieved 10 February 2013.
- Macadam, Alison (24 March 2008). "Long Duk Dong: Last of the Hollywood Stereotypes?". NPR. Retrieved 10 February 2013.