Question: Amanda Carrington is a fictional character on the ABC prime time soap opera "Dynasty", the character was originated by which American actress?

Context paragraphs:
Adam Carrington: Adam Alexander Carrington is a fictional character from the ABC prime time soap opera "Dynasty", created by Richard and Esther Shapiro.  Introduced at the beginning of the series' third season, the role was originated by Gordon Thomson in 1982.  He continued to appear as a series regular until the series finale in 1989.  For the 1991 miniseries continuation, the role of Adam Carrington was recast with Robin Sachs as Thomson was unavailable.

Linda Evans: Linda Evans (born November 18, 1942) is an American actress known primarily for her roles on television.  In the 1960s, she gained notice for playing Audra Barkley, the daughter of Victoria Barkley (played by Barbara Stanwyck) in the Western television series, "The Big Valley" (1965–1969).  However, she is most prominently known for the role of Krystle Carrington, the devoted wife of Blake Carrington (played by John Forsythe) in the 1980s ABC prime time soap opera "Dynasty", a role she played from 1981 to 1989.

Claudia Blaisdel Carrington: Claudia Blaisdel Carrington (maiden name Barrows) is a fictional character on the ABC prime time soap opera "Dynasty", created by Richard and Esther Shapiro.  Originated by Pamela Bellwood in the series' premiere episode, "Oil," on January 12, 1981, the character was written out after the October 20, 1982 third season episode "The Wedding."  Claudia reappeared in the March 30, 1983, episode "The Dinner" later that season.  Bellwood rejoined the series as a regular cast member in the October 19, 1983, fourth season episode "The Note" and remained until the end of the sixth season.

Dex Dexter: Farnsworth "Dex" Dexter is a fictional character on the ABC prime time soap opera "Dynasty".  Portrayed by Michael Nader, the character was introduced as a love interest for Alexis Colby in the series' fourth season in 1983.  He became her third husband, and arguably the second great love of her life, after Blake Carrington.  Even after the end of their marriage, Dex remained a strong force in Alexis's life.  Dex Dexter remained on the series until its final episode in 1989.

Amanda Carrington: Amanda Carrington is a fictional character on the ABC prime time soap opera "Dynasty", created by Richard and Esther Shapiro.  Originated by actress Catherine Oxenberg early in the series' fifth season in 1984, Oxenberg left the series after its sixth season in 1986.  The role was immediately recast with Karen Cellini, who appeared in the series' seventh season, though no explanation was given as to why Amanda now spoke with an American accent.

Cynthia Cidre: Cynthia Cidre (born September 10, 1957) is an American screenwriter and producer.  She is best known as a showrunner and executive producer of TNT prime time soap opera, "Dallas" (2012–14).  Cidre was the creator and an executive producer for the CBS prime time soap opera "Cane" in 2007 and wrote the scripts for the films, "In Country" (1989), "A Killing in a Small Town" (1990) and "The Mambo Kings" (1992).  In 2015, she joined as co-showrunner another prime time soap opera, "Blood & Oil" on ABC.

Catherine Oxenberg: Catherine Oxenberg (Serbian: Катарина Оксенберг , "Katarina Oksenberg", born September 22, 1961) is an American actress best known for her performance as Amanda Carrington on the 1980s prime-time soap opera "Dynasty".  She is the daughter of Princess Elizabeth of Yugoslavia.  She has dual citizenship, American and Serbian.

Jeff Colby: Jeffrey Broderick "Jeff" Colby is a fictional character on the ABC prime time soap opera "Dynasty", created by Richard and Esther Shapiro.  Portrayed by John James, Jeff Colby was introduced in the show's first episode in 1981 and appeared as a series regular for six seasons until transferring to the spin-off companion series, "The Colbys".  The character returned to "Dynasty" upon the cancellation of "The Colbys" in 1987 and remained with the series until its final episode in 1989.  James later reprised his role for the 1991 miniseries, "".

Dominique Deveraux: Dominique Deveraux (born Millie Cox; formerly Lloyd) is a fictional character on the ABC prime time soap opera "Dynasty" and its spin-off, "The Colbys".  Portrayed by Diahann Carroll from 1984 through 1987, the character was written out of the series after its seventh season.  Carroll did not return for the 1991 miniseries "".

Kirby Anders: Kirby Anders (formerly Colby) is a fictional character on the ABC prime time soap opera "Dynasty".  Portrayed by Kathleen Beller from 1982 to 1984, the character was introduced in the seventh episode of the series' third season, but was written out after the fourth season finale.  Beller reprised the role for the 1991 miniseries, "".

Supporting paragraphs: Amanda Carrington Catherine Oxenberg
Answer: Catherine Oxenberg