Rob Lowe and eight other "West Wing" alums are set to return for the White House drama's final episodes.
Lowe, who left "The West Wing" in 2003, will reprise his role as Sam Seaborn in the final two episodes of Aaron Sorkin's Emmy-winning series.
Also reprising their roles with appearances in one or more of the drama's final five episodes are Mary-Louise Parker, Anna Deavere Smith, Emily Procter, Marlee Matlin, Gary Cole, Tim Matheson, Timothy Busfield and Annabeth Gish.
http://www.hollywoodreporter.com/thr/television/article_display.jsp?vnu_content_id=1002076673
Now, considering we never found out what happened to Sam's Congressional election, this should be interesting. In the last episode with Sam it was clearly implied that he was going to lose the election, in which case he was going to be "promoted" within the West Wing. Instead, he just disappeared without a further mention.
Will he be "Congressman" Seaborn on his return?
Squeak!
I would guess he will be, since he disappeared like Mandy.