Molly Ringwald has opened up about what she described as her worst acting job, pointing to her experience on the 2008 coming-of-age series The Secret Life of the American Teenager.

The actress discussed the show during a Tuesday appearance on Watch What Happens. She said one co-worker was particularly difficult, and that person’s behavior affected her overall experience on the production.

Ringwald’s comments offer a candid perspective on her time with the series, which centered on the lives and relationships of teenagers and their families. She did not identify the co-worker in the discussion.

Her remarks have drawn attention because of the contrast between the show’s coming-of-age subject matter and the behind-the-scenes challenge she recalled from working on it.