Nina Foch guest-stars as Clarissa, Ben Cartwright's snooty Eastern cousin. Swooping down upon the Ponderosa, the well-meaning but insufferable Clarissa manages to alienate all of the Cartwrights' friends-and even worse, causes ranch cook Hop Sing to tender his resignation. It has been suggested that Chester Krumholz' teleplay was specifically designed to prove that a regular female character would be disastrous for Bonanza. Whatever the reasons for its gestation, "Clarissa" originally aired on April 30, 1967. ~ Hal Erickson, Rovi