Rob Lowe

Since his departure, which occurred because actor Rob Lowe wanted to move on, Sam was mentioned in a few episodes on the show, yet viewers were never made aware of his fate. In June 2005 it was reported that Rob Lowe might return as Sam for five episodes in November 2005 [1], but this did not pan out. It is consistently rumoured that he may return for a final appearance if the seventh series is to be the last one.