Who plays Agnes, Conrad’s medical-student friend, in The Summer I Turned Pretty season 3?

Zoé de Grand’Maison plays Agnes, Conrad’s medical-student friend, in The Summer I Turned Pretty season 3.

Agnes is introduced as part of Conrad’s life away from Belly and Cousins Beach. Her connection to medicine reflects Conrad’s professional and academic direction during the season’s four-year time jump.

The character becomes important because she encourages Conrad to attend Susannah’s memorial ceremony for closure. Later, Agnes encourages Conrad to pursue Belly after he receives her letters, helping move the finale toward their reunion in Paris.

Agnes is distinct from Anika, Belly’s college roommate, and Kayleigh, Adam Fisher’s secretary. The actor’s name includes the accented spelling “Zoé de Grand’Maison,” which is the form used in the series’ credited cast information.