There's a casting shake-up going on at 7th Heaven as two of the Camden kids prepare to leave the nest. Last month, we reported that series star Barry Watson was quitting the show, and now executive producer Brenda Hampton tells TV Guide Online that "Jessie Biel is also leaving." Hampton explains, "[Biel] is committed for three episodes [for next season] and she made that commitment when she came back last year, but I'm hoping that Jessie will do more." Ditto for Watson, who is set to make his last appearance in the season finale. "I'm begging him not to [leave]. I'm hoping I can talk him into coming back and doing some more episodes next season," says Hampton. "He hasn't said whether he is or not, but I think he is open to the idea that, or he just likes hearing me beg!" Hampton also confirmed that singer Joy Enriquez is no longer on contract as a recurring guest star, but is also welcome back at Heaven.