Best known for her role as Marcia Brady on "The Brady Bunch" from 1969 to 1974, Maureen McCormick portrayed multiple characters on "Fantasy Island" in six episodes in seasons 1, 2, 3, 4 and 6. Unlike Michelle Phillips, the actor She didn't have one definitive role among her various parts and played a different character each time she appeared on the show.

After her appearance on Fantasy Island, McCormick began a theater career in the 1980s and 1990s, playing Wendy Darling in productions of Peter Pan and Betty Rizzo in Grease. However, in the post-Brady Bunch years, the actress struggled with substance addiction, even losing her role in Raiders of the Lost Ark for showing up to an audition under the influence. Even while suffering from her addictions, McCormick married Michael Cummings in 1985, after which she managed to get sober, although she still struggled with depression.

'90s kids and Millenials may remember McCormick from The Amanda Show, in which she played Moody's mother. She also released an album, When You Get a Little Lonely, which debuted on April 4, 1995, to mostly negative reviews. After this, her career has been marked mostly by appearances in reality TV series, including VH1's Celebrity Fit Club, and even a guest appearance on Dr. Phil". But she published her autobiography, Here's the Story: Surviving Marcia Brady and Finding My True Voice, in 2008.

Her last film was as Nurse Ruland in the 2017 psychological thriller Rock Paper Dead, although McCormick has continued to appear on television, appearing in the 2019 reality show A Very Brady Renovation and hosting Macy's Thanksgiving Cake Spectacular: Cakes on Parade ” The same year. In 2023, McCormick actually appeared in an episode of Fox's legacy series Fantasy Island, appearing in Season 2, Episode 4, "Miami Mystery" as a character named Rosemary.