Daffney is a pretty coral-colored, black-haired female Snork who wears a bob haircut and a red star-shaped hairpin. She is always concerned with her looks, but has a good heart deep down. She won the title of Miss Junior Snorkland in a beauty pageant with the help of Yucky, a baby rainbow swamp fish (much like the ugly duckling).
With a talent in fine arts, Daffney becomes star of the show as the understudy in a play for Tallulah Bankfish, a famous Broadway theatre actress from New Snork City, and has entered a piece of sculpture for an art show.
Daffney is best friends with Casey Kelp and love interest to Dimmy Finster before the latter is written out. She also has a good relationship with Jo-Jo, who once calls Daffney "Alberta Einsnork", and Li'l Seaweed, with whom she shares fashion tips and works as fellow trapeze artist in a circus once.