Gwendolyn J. Shepherd (also known as Gwen Shepherd) is an African-American actress. In the late 1970s and 1980s she performed in a number of musical theatre productions. From 1989 onwards she had a number of minor parts in prominent television series. Gwen Shepherd is the voice of Opal Otter on PB&J Otter. Other TV roles of hers include a cashier in the Seinfeld episode "The Stranded" and guest roles in several other live action shows.