Denise Dawson née Doyle played by (Suzanne Cryer) is Roz's bitchy older sister. Denise appears twice, first in "The Guilt Trippers", where Roz bemoans Denise's perfect life with her handsome husband Craig. However, there are evident cracks in the relationship, and when she next appears in "Seabee Jeebies" Denise receives a call from Craig telling her he's leaving her. Denise regularly puts Roz down using back-handed compliments, such as buying Roz a dress two sizes too small and telling her how good she'd look in it.