Ken Kercheval (born July 15, 1935, Wolcottville, Indiana) is an American actor, best known for his role as Cliff Barnes on the television series Dallas.

Kercheval trained under Sanford Meisner at The Neighborhood Playhouse in New York City. Kercheval made his Broadway debut in the 1962 play Something About a Soldier. He appeared off-Broadway in the 1963 Kurt Weill revue From Berlin to Broadway, and can be heard on the cast recording. Additional theatre credits include The Apple Tree, Cabaret (replacing Bert Convy as Cliff), and Here's Where I Belong. In 1966, he appeared as the title character in the original Broadway production of Fiddler on the Roof, co-starring with Herschel Bernardi, Maria Karnilova, Julia Migenes, Leonard Frey, and Pia Zadora.

He got his start on television in 1966, playing the part of Dr. Nick Hunter on Search for Tomorrow. His film credits include The Seven-Ups with Roy Scheider and Tony LoBianco plus F.I.S.T. with Sylvester Stallone.

Kercheval and Larry Hagman were the only Dallas cast members to stay with the series throughout its entire run, although Kercheval's character was only a recurring character during the first two seasons. He became a regular cast member in the 1979-1980 season. Kercheval reprised the role of Cliff Barnes in the 1996 Dallas reunion, J. R. Returns, and he appeared in the 2004 CBS reunion special. He will reprise the role again in episodes 3, 4, and 10 of the forthcoming new Dallas (2012) series.

Morgan Brittany (born Suzanne Cupito, December 5, 1951, Los Angeles, California, United States) is an American film and television actress. She is possibly best known for her role in the 1980s primetime soap opera Dallas, where she portrayed Katherine Wentworth, the scheming younger half-sister of Pamela Ewing and Cliff Barnes.

Under her birth name, Brittany began her career as a child in 1960 in an episode of the original Twilight Zone series, "Nightmare as a Child", as the little girl at the end of the episode. She subsequently appeared in the fourth season episode "Valley of the Shadow" as "Sissy Johnson" and the fifth season episode, "Caesar and Me", as "Susan". She discusses these parts in interviews for the Twilight Zone Definitive Edition DVDs (the season 4 and season 5 sets).^{[citation needed]} She appeared on TV in a 1960 episode of Lloyd Bridges's Sea Hunt. She also appeared in the 1962 film, Gypsy, as "Baby" June Havoc. Although uncredited, she appeared in the birthday party scene in the 1963 movie The Birds. In 1964 she appeared in an episode of Daniel Boone ("Fluellen Family") portraying a young mute girl. She also appeared on Bridges's CBS anthology series The Lloyd Bridges Show. In 1966 she appeared as "Kellie" in the series episode "Kellie" on Branded. She appeared in a 1967 episode of The Andy Griffith Show as "Mary Alice Carter", whom Opie Taylor (Ron Howard) asks out for his first date. She also appeared in the 1968 film, Yours, Mine and Ours, portraying Louise Beardsley.

Patrick George Duffy (born March 17, 1949) is an American character actor of stage and film. He is best known for his role on the CBS television drama Dallas, where he played Bobby Ewing from 1978 to 1985 and from 1986 to 1991. Duffy will return to reprise his role as Bobby in a new up-to-date Dallas currently scheduled to air its 10-episode first season in Summer 2012. He is also well known for his role on the ABC television sitcom Step by Step as Frank Lambert, the husband of Carol Lambert, played by Suzanne Somers, from 1991 to 1998.

In 1976, Duffy landed the role of Mark Harris in the short-lived television series Man from Atlantis. Following the series' cancellation in early 1978, he got his big break in the role of Bobby Ewing on the TV series Dallas. The show became a worldwide phenomenon, ranking in the top 3 for the first half of the 1980s. Despite its success, Duffy opted to leave the series in 1985 with his character being killed off onscreen. However, with both the show and his career on the decline, he returned in 1986 in the infamous shower scene that rendered the entire 1985–1986 season "just a dream". Duffy then remained with the series until its cancellation in 1991. He also appeared in several episodes of the spin-off series Knots Landing between 1979-82. Throughout the 13-year run of Dallas, Duffy directed several episodes of the series. In 1992, he began a role of the public announcing host and Pete's rival, Harold Hatchback (which is from Rob Paulsen's voice role) in the episode, "Buddy Building" from Goof Troop.

Linda Ann Gray (born September 12, 1940) is an American film, stage and actress, director, producer and former model, best known for her role as Sue Ellen Ewing on the television prime-time soap opera Dallas.

Linda Ann Gray was born in Santa Monica, California. Prior to acting, Gray working as a model in the 1960s and began her acting career in television commercials-nearly 400 of them, and also made brief appearances in the feature films, such as Under the Yum Yum Tree and Palm Springs Weekend in 1963.

Gray began her professional acting career in the 1970s, with guest roles on many television series such as Marcus Welby, M.D., McCloud and Switch. She also made appeared on films The Big Rip-Off (1975) and Dogs (1976).

In 1977 she was cast as fashion model Linda Murkland, the first transgender series regular on American television on the TV series All That Glitters. The show, a spoof of the soap opera format, was cancelled after just 13 weeks. Gray was then cast as suspicious wife Carla Cord in the 1977 television movie Murder in Peyton Place.

Larry Martin Hagman (born September 21, 1931) is an American film and television actor, producer and director most widely known for playing J.R. Ewing in the 1980s primetime television soap opera Dallas and Major Anthony "Tony" Nelson in the 1960s sitcom I Dream of Jeannie. He is also the son of actress Mary Martin.

Hagman was born in Fort Worth, Texas. His mother, Mary Martin, later became a Broadway actress and his father, Benjamin Jack Hagman, was a district attorney. His parents divorced in 1936 when he was five years old. He lived with his grandmother in Texas and California. His famous mother became a contract player with Paramount in 1938 and occasionally took him to her movies.

In 1940 his mother met and married Richard Halliday and gave birth to a daughter, Heller, the following year.^{[citation needed]} Hagman attended the strict Black-Foxe Military Institute (now closed). When his mother moved to New York City to continue her Broadway career, Hagman again lived with his grandmother in California.^{[citation needed]} A couple of years later, his grandmother died and Hagman joined his mother in New York. At age 14 (in 1945) while attending boarding school, he began drinking heavily which led to serious health problems later in life.^{[citation needed]}