Be My Valentine, Charlie Brown 1975
as Violet / Frieda (voice)
It's the Easter Beagle, Charlie Brown 1974
as Patricia 'Peppermint Patty' Reichardt (voice)
You're Not Elected, Charlie Brown 1972
as Violet (voice) (uncredited)
Snoopy, Come Home 1972
as Clara (voice), Vocals
Credits from TMDB.