 The characters of Helen, Tom and Jenny Willis as well as Mother  Olivia Jefferson were first introduced in the episode "Lionels  Engagement". However, the only actor from the episode to reprise  their role in the _"Jeffersons, The" (1975)_ (qv) series was  Zara Cully (qv) (Mother Jefferson). Helen, Tom and Jenny were  portrayed by Kim Hamilton (qv), Charles Aidman (qv) and  Lynne Moody (qv) respectively and were replaced by  Roxie Roker (qv), Franklin Cover (qv), and  Berlinda Tolbert (qv) when _"Jeffersons, The" (1975)_ (qv)  premiered. Actors Kim Hamilton (mom) and Lynne Moody (daughter) were  actually only four years apart in age!