She played Midge (a WAC PFC) in Elvis Presley's Kissin' Cousins (1964).

[3] After she graduated from Hollywood High School, Pepper worked as a model and typist and took night classes at Los Angeles City College.

[3] In 1960-1961, she was cast as next-door teenager Jean Pearson, the romantic interest of young Mike Douglas (Tim Considine) in My Three Sons.

In 1964, Pepper appeared in an episode of Perry Mason, titled "The Case of the Drifting Dropout".

In 1965, Pepper was named as the co-star of Sally and Sam, a series "tentatively scheduled" to be broadcast from 9:30 to 10 p.m. Eastern Time on Mondays on CBS.