Question:  Blake Alexander Carrington is a fictional character on the ABC television series "Dynasty", created by Richard and Esther Shapiro whose role was portrayed by John Forsythe, and also appeared as a guest on several talk and variety shows and as a panelist on what type of television show?

Context articles: Jeff Colby
Amanda Carrington
Sammy Jo Carrington
Blake Carrington
Fallon Carrington Colby
Claudia Blaisdel Carrington
Adam Carrington
John Forsythe
Dynasty (1981 TV series)
List of Dynasty episodes

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, "".
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.
Sammy Jo Carrington (born Samantha Josephine Dean; formerly Fallmont) is a fictional character on the ABC television series "Dynasty", created by Richard and Esther Shapiro.
 The niece of central protagonist Krystle Carrington (Linda Evans), Sammy Jo marries and has a son with Steven Carrington (Al Corley, later Jack Coleman).
Blake Alexander Carrington is a fictional character on the ABC television series "Dynasty", created by Richard and Esther Shapiro.
 The role was portrayed by John Forsythe from the first episode of the series in 1981 until its finale in 1989.
 Forsythe returned for the 1991 miniseries, "".
 In The CW's 2017 reboot of the series, Blake will be played by Grant Show.
Fallon Carrington Colby is a fictional character from the ABC television series "Dynasty", its spin-off "The Colbys", and The CW's 2017 reboot series.
 Created by Richard and Esther Shapiro, the role of Fallon was originated by Pamela Sue Martin in the show's first episode in 1981, and Martin left at the end of the fourth season in 1984.
 Fallon was recast with Emma Samms in 1985, and the character was spun off onto a companion series called "The Colbys".
 After the cancellation of the second series, Fallon (portrayed by Samms) returned to "Dynasty" in 1987, and remained on the series until its finale in 1989.
 Samms later reprised the role for the 1991 miniseries "".
 Elizabeth Gillies will play Fallon in the 2017 reboot series "Dynasty".
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.
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.
John Forsythe (born either John Lincoln Freund or Jacob Lincoln Freund; January 29, 1918 – April 1, 2010) was an American stage, film/television actor, producer, narrator, drama teacher and philanthropist whose career spanned six decades.
 He also appeared as a guest on several talk and variety shows and as a panelist on numerous game shows.
Dynasty is an American prime time television soap opera that aired on ABC from January 12, 1981 to May 11, 1989.
 The series, created by Richard and Esther Shapiro and produced by Aaron Spelling, revolves around the Carringtons, a wealthy family residing in Denver, Colorado.
 "Dynasty" stars John Forsythe as oil magnate Blake Carrington, Linda Evans as his new wife Krystle, and later Joan Collins as his former wife Alexis.
"Dynasty" is an American prime time television soap opera that aired on ABC from January 12, 1981 to May 11, 1989.
 The series, created by Richard and Esther Shapiro and produced by Aaron Spelling, revolves around the Carringtons, a wealthy family residing in Denver, Colorado.
 "Dynasty" stars John Forsythe as oil magnate Blake Carrington, Linda Evans as his new wife Krystle, and later Joan Collins as his former wife Alexis.