|First appearance||"What You Leave Behind" (8.01)|
|Last appearance||"The Substitute" (11.04)|
Rosa Dupree is a main character in the Frasier-based fan fiction spin-off The Deep End.
The Deep End
Rosa is an artist, who owns a small workshop that specializes in manufacturing trinkets for gift shops. She first appears in Season 8. Her workshop neighbors the businesses owned by Chloe Nolan and Mark Flint. Rosa's friendship with Mark takes an unexpected turn in Season 10 when he admits his feelings for her. Rosa tells Mark she feels the same way, and it's not long before they are engaged. Rosa is devastated when Mark jilts her on their wedding day to be with Roz Doyle, but ultimately forgives him when he returns to make peace and finalise his affairs. In the fourth episode of Season 11, Mark has plans to travel the world and spread Roz's ashes, and extends Rosa an offer to join him. Rosa declines, but decides she needs a change of pace anyway and moves back to her home town in Minnesota.