Samantha Who? is an American television sitcom that originally aired on ABC from October 15, 2007 to July 23, 2009. The series was created by Cecelia Ahern and Don Todd, who also served as producers. Although highly rated during its first season, the sitcom lost momentum and viewers throughout its second and final season, and ABC canceled the show in May 2009. The series was produced by Brillstein-Grey Entertainment and Touchstone Television partnered with ABC Studios and executive produced by Christina Applegate, Donald Todd, Peter Traugott, Bob Kushell, Alex Reid, and Marco Pennette.