All seven of the original cast members remained with the show through its entire eight-year run, with five characters added to the main cast along the way. D.J. (Candace Cameron)'s best friend Kimmy Gibbler (Andrea Barber) was a recurring character in seasons one through four, who was upgraded to a regular in season five. Loughlin's character Rebecca Donaldson originally appeared for six episodes in season two; producers decided to expand her role and made her a regular the following season. After marrying Jesse, they have twins Nicky and Alex, who make their debut in season five. As babies, the children were played by Daniel and Kevin Renteria, and in season six, the roles of the twins were succeeded by Blake and Dylan Tuomy-Wilhoit. The last main character added was Steve Hale, who was D.J.'s boyfriend in seasons six and seven. He was played by Scott Weinger.
All seven of the original cast members remained with the show thr.ough its entire eight-year run, with five characters added to the main cast along the way D.J. (Candace Cameron)'s best friend Kimmy Gibbler (Andrea Barber) was a recurring character in seasons one through four, who was upgraded to a regular in season five. Loughlin's character Rebecca Donaldson originally appeared for six episodes in season two; producers decided to expand her role and made her a regular the following season. After marrying Jesse, they have twins Nicky and Alex, who make their debut in season five. As babies, the children were played by Daniel and Kevin Renteria, and in season six, the roles of the twins were succeeded by Blake and Dylan Tuomy-Wilhoit. The last main character added was Steve Hale who was D.J.'s boyfriend in seasons six and seven. He was played by Scott Weinger.