Dominique Deveraux (Diahann Carroll)- Blake's half-sister, mother of Jackie, and rival of Alexis.

Alexis also had a hate relationship with her sister, Caress.

Kirby Anders (Kathleen Beller), ex-wife of Jeff and Adam; daughter of Blake's butler Joseph Anders.

Dana, Adam's ex-wife.

Sammy Jo, Dana, and Leslie (Ben's daughter).

Dominique with her daughter, Jackie.