The third season of Dynasty, an American television series based on the 1980s prime time soap opera of the same name, premiered in the United States on The CW on October 11, 2019.

Season three stars Elizabeth Gillies as Fallon Carrington, Grant Show as her father Blake Carrington, Daniella Alonso (replacing Ana Brenda Contreras) as Blake's new wife Cristal, and Sam Underwood as Fallon's brother Adam Carrington, with Robert Christopher Riley as Michael Culhane, Sam Adegoke as Jeff Colby, Rafael de la Fuente as Sam Jones, Adam Huber as Fallon's fiancé Liam Ridley, Alan Dale as Joseph Anders, Maddison Brown as Kirby, and Michael Michele as Dominique Deveraux.

Notable recurring characters featured in season three include Monica Colby (Wakeema Hollis); Laura Van Kirk (Sharon Lawrence); Vanessa Deveraux (Jade Payton); and Fletcher Myers (Daniel Di Tomasso).

[26] In July 2019, it was announced that Ana Brenda Contreras would not be returning for season three for personal reasons, and that Daniella Alonso would take over the role of Cristal.

[1][2] On September 5, 2019, Ken Kirby was announced to be joining the show in a recurring role as Evan Tate, Trixie's older brother.

[33] In February 2020, it was announced that Wil Traval had been cast to recur as Father Caleb Collins, a "young, charming and irreverent priest with a soft spot for the disabled vets who rehab in the hospital's clinic."

[40] Hoping to use reworked versions of the two scripts to start the fourth season, Reims teased Blake going to war with Alexis, Jeff and Adam; Sam's new relationship with Ryan; and the return of the Moldavians.