John Ritter

Ritter as Jack Tripper, 1977

Ritter headlined several stage performances. After his graduation from USC in 1970, his first television acting experience was a campus revolutionary in the television series Dan August starring Burt Reynolds and future Three's Company co-star Norman Fell. Ritter made his film debut in the 1971 Disney film The Barefoot Executive. He made guest appearances on the television series Hawaii Five-O, M*A*S*H, and many others. He had a recurring role as the Reverend Matthew Fordwick on the drama series The Waltons from October 1972 to December 1976. Because he was not a weekly cast member, he had time to pursue other roles, which he did until December 1976, when he left for a starring role in the hit sitcom Three's Company (the Americanized version of the 1970s British Thames Television series Man About the House) in 1977. In 1978, Ritter played Ringo Starr's manager on the television special Ringo. In 1982, Ritter provided the voice of Peter Dickinson in the animated film The Flight of Dragons.

Ritter became a household name portraying struggling culinary student Jack Tripper with two female roommates. Ritter co-starred opposite Joyce DeWitt and Suzanne Somers, and then later Jenilee Harrison and Priscilla Barnes. Much of the comedy centered around Jack's pretending to be gay to keep the old-fashioned landlords appeased over the seemingly sordid living arrangements. The series spent several seasons near the top of the television ratings in the United States before ending in 1984. A year-long spin-off Three's a Crowd ensued, as the Jack Tripper character has a live-in girlfriend and runs his own bistro. The original series has been seen continuously in reruns and is available on DVD. During the run of Three's Company, Ritter appeared in the films Hero at Large, Americathon, and They All Laughed. In 1986, he played the role of Dad in the music video for Graham Nash's song "Innocent Eyes" from the album of the same name.

Hooperman was Ritter's first regular television role after Three's Company. Detective Harry Hooperman inherits a run-down apartment building and hires Susan Smith (Debrah Farentino) to run it. A relationship follows, and Hooperman must juggle work, love, and the antics of Bijoux the dog. In 1988, John was nominated for both an Emmy Award[7] and a Golden Globe Award for his work on Hooperman. Ritter won a People's Choice Award for this role. From 1992 to 1995, Ritter returned to television for three seasons as John Hartman, aide to a U.S. Senator in Hearts Afire. This series starred Markie Post as Georgie Anne Lahti and Billy Bob Thornton as Billy Bob Davis. He also played Garry Lejeune / Roger Tramplemain in the production Noises Off in 1992.

After his time on television, he appeared in a number of movies, most notably Problem Child and its first sequel. He played the lead role in Blake Edwards' 1989 film Skin Deep, appeared in the film version of Noises Off, rejoined Billy Bob Thornton in the Oscar-winning Sling Blade (playing a kindhearted, gay, discount-store manager), and co-starred with Olivier Gruner in the 1996 action film Mercenary. Ritter starred in many made-for-TV movies, including Gramps (1995), co-starring with Andy Griffith, Rob Hedden's The Colony (1995) with Hal Linden, Stephen King's It, Danielle Steel's Heartbeat with Polly Draper, and It Came From the Sky in 1999 with Yasmine Bleeth.

Ritter also made guest appearances on television shows, such as Felicity, Ally McBeal, Scrubs, Buffy the Vampire Slayer, and an episode of Law & Order: SVU (2002). He also provided the voice of the title character in the animated children's show Clifford the Big Red Dog and its animated film adaptation Clifford's Really Big Movie (2004), a role for which he received four Emmy nominations. His final film was Stanley's Dinosaur Round-Up (2006), an animated direct-to-DVD film based on the television series, which was dedicated to his memory.

At the time of his death he was starring in 8 Simple Rules for Dating My Teenage Daughter.

Ritter played Claude Pichon in The Dinner Party (2000) at the Music Box Theatre on Broadway, which was written by Neil Simon. It ran for 364 performances. Ritter won the Theatre World Award in 2001 for his performance in that work.[8] In 2003, Ritter made his final stage appearance in All About Eve, a star-studded benefit for the Actors' Fund of America held at the Ahmanson Theatre.

Many of Ritter's co-workers expressed deep sorrow following the news of his death. Ritter's Three's Company co-star Suzanne Somers said: "I'm so sad for the family. We lost a good one, it was so unfinished". Zach Braff, who worked with Ritter on Scrubs, called Ritter a "comic hero" of his, and said he had approached series creator Bill Lawrence to get Ritter to play his TV father.[21] Katey Sagal testified in the wrongful death lawsuit, calling Ritter a "funny man who was funny like nobody's business".[22] His Three's Company co-star Joyce DeWitt remarked he was "impossible to forget. Impossible not to love".[23]

8 Simple Rules for Dating My Teenage Daughter was later retitled 8 Simple Rules following Ritter's death and continued for one and a half more seasons until the network canceled it in 2005. Ritter's character, Paul Hennessy, was said to have died after collapsing in a grocery store while buying milk. ABC aired the first three episodes of the show's second season that had been taped before his death, each of which was introduced by Katey Sagal. The remainder of the show dealt with the family trying to grapple with Paul's death. New male characters, played by James Garner and David Spade, were later added to the main cast as Ritter's replacements. Shortly before his death, Ritter had done a week-long taping with Hollywood Squares, which was aired as a tribute to him, introduced by Henry Winkler, the executive producer of the show and very close friend of Ritter's. Four days after Ritter's death, Nick at Nite ran an all-night Three's Company marathon dedicated to his memory.[24]

In 2004, Ritter was posthumously given an Emmy nomination for playing Paul Hennessy in 8 Simple Rules for Dating My Teenage Daughter, but lost to Kelsey Grammer for playing the title character of Frasier. Upon accepting his trophy, Grammer's remarks included comments made in tribute and remembrance of Ritter.[25] Ritter's final films, Bad Santa and Clifford's Really Big Movie, along with an episode of Scrubs (his character in this series died, as well) and King of the Hill, were dedicated to his memory.[26]

On June 6, 2008, Hollywood High School dedicated a mural of Ritter painted by Eloy Torrez.[27]

In March 2010, the Thoracic Aortic Disease (TAD) Coalition, in partnership with Yasbeck and the John Ritter Foundation (JRF), announced the creation of the "Ritter Rules" which are life-saving reminders to recognize, treat, and prevent thoracic aortic dissection. The purpose of the JRF is to provide accurate information to the general public about the disease and its risk factors, provide support to individuals who have thoracic aortic disease or have lost a loved one to the disease, and improve the identification of individuals at risk for aortic dissections and the treatment of thoracic aortic disease through medical research. Yasbeck worked with the University of Texas Health Science Center at Houston (UTHealth) to establish the John Ritter Research Program in Aortic and Vascular Diseases with the goal of preventing premature deaths due to aortic dissection by identifying genetic mutations that predispose individuals to thoracic aortic aneurysms and dissections.