The following year , executive producer Bradley Bell announced that Mills had signed a new contract with the show , making her a full - time member of the cast .
Mills made her first screen appearance as Pam on December 1 , 2006 .
The following year , executive producer Bradley Bell announced that Mills had signed a new contract with the show , making Mills a full - time member of the cast .
Mills made her first screen appearance as Pam on December 1 , 2006 .