Kaley Cuoco has landed one of the leads in ABC's untitled sisters comedy pilot, Oliver Hudson has been cast in CBS' comedy pilot The Weekend. The untitled sisters project, from Warner Bros. Television, revolves around two sisters who live together despite having grown up under different circumstances -- one rich, one poor. Cuoco will portray Gabby, the younger sister to Marisa Coughlan's character.

In other casting news, The Hollywood Reporter says Marion Ross been tapped for NBC's comedy pilot Community Service and Yara Martinez has joined Fox's drama pilot Faceless.