Fallon Carrington is a fictional character from the ABC television series Dynasty and its spin-off The Colbys. 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 Dynasty: The Reunion. Elizabeth Gillies plays Fallon in The CW's 2017 reboot series Dynasty. Fallon is the daughter of oil baron Blake Carrington and his first wife, Alexis, portrayed by John Forsythe and Joan Collins in the original series. Initially a self-indulgent troublemaker constantly at odds with her father's second wife, Krystle (Linda Evans), Fallon navigates a series of romantic entanglements that includes marriages to Jeff Colby (John James) and his half-brother and cousin, Miles Colby (Maxwell Caulfield).