Who plays Denise, Steven’s office coworker, in season 3 of The Summer I Turned Pretty?

Isabella Briggs plays Denise, Steven’s office coworker, in season 3 of The Summer I Turned Pretty. Denise is one of the recurring characters added for the final season.

Her role is tied to Steven’s adult work life rather than to the central Fisher-family romance. That workplace setting helps show how Steven’s priorities and relationship with Taylor evolve after the college-centered years.

Denise can be confused with other season 3 supporting characters. Emma Ishta plays Kayleigh, Adam’s secretary, while Lily Donoghue plays Lacie Barone and Kristen Connolly plays Lucinda Jewel. The characters belong to separate storylines and family or workplace circles.

The performer’s name is Isabella Briggs, while the character’s name is Denise. This distinction matters because the show’s main cast includes several actors whose characters are identified primarily by first names. Denise’s appearance reinforces the season’s wider focus on work, travel, education, and adult relationships.