Little House on the Prairie actress Pamela Roylance got candid about the unexpected request she faced when joining the cast of the hit '70s show. The 73-year-old sat down with Patrick Labyorteaux, who portrayed Andrew "Andy" Garvey on the series and hosts the podcast The Patrick LabyorSheux, for a March 24 episode about how she landed the coveted role. Prior to joining the cast as Sarah Carter in the ninth season, Pamela worked at a chocolate factory to make ends meet, she recalled.