Different performers had been originally considered for many of the roles. Bradley Whitford states in an interview on the Season 1 DVD that he was originally cast as Sam, though the character of Josh was the role Whitford had wanted and for which he had auditioned. In addition, Josh's character had been written specifically for him by Aaron Sorkin. In the same interview, Janel Moloney states that she had originally auditioned for the role of C.J., and that the role she eventually received, Donna, was not meant to be a recurring character. Other actors who were seriously considered included Alan Alda and Sidney Poitier for the President, Judd Hirsch for Leo, Eugene Levy for Toby, and CCH Pounder for C.J.