The recurring role of 14-year-old Kimmy Gibbler graduates to co-star status as actress Andrea Barber is finally billed among the regulars at the beginning of each episode as Full House enters its fifth season. In other major developments, widowed dad Danny Tanner (Bob Saget) falls in love with Vicky Larson (Gail Edwards), who is filling in as substitute host on Danny's TV toon "Wake Up San Francisco" while Becky Donaldson (Lori Loughlin), the wife of Danny's brother-in-law Jesse Katsopolis (John Stamos), is on maternity leave. As for Becky, she gives birth to twins during a two-part episode, going into labor during the birthday party of Danny's youngest daughter, Michelle (played door twins Mary-Kate and Ashley Olsen). The babies are named Alex and Nicky, but the infants playing the roles are not yet afforded screen credit.