She appeared in the films Fast Times at Ridgemont High (1982), Night of the Comet (1984), Chopping Mall (1986), The Zero Boys (1986) and Scream Queen Hot Tub Party (1991).

Maroney's best-known film roles are Cindy Carr in Fast Times at Ridgemont High (1982), Samantha Belmont in Night of the Comet (1984),[2] Jamie in The Zero Boys (1985), and Allison in Chopping Mall (1986).

Her daytime TV roles were as Kimberly Harris Beaulac on the soap opera Ryan's Hope (1979–1983) and Tina Lord on One Life to Live (1984–1985).

She was featured on the cover of People for a 1980 article titled: Torrid Teens on the Soaps (with actresses Genie Francis and Kristen Vigard).

Maroney appeared as a guest on the Playboy TV 2015 "So Sexy It's Scary" Halloween episode with Jeffrey Reddick and Lisa Wilcox[citation needed].