Angel is an American supernatural television series, a spinoff of Buffy the Vampire Slayer. The series was created by Buffy's creator, writer and director Joss Whedon, in collaboration with David Greenwalt. It aired on The WB from October 5, 1999, to May 19, 2004, consisting of five seasons and 110 episodes. Like Buffy, it was produced by Whedon's production company, Mutant Enemy.

The show details the ongoing trials of Angel, a vampire whose human soul was restored to him by a Romani curse as a punishment for the murder of one of their own. After more than a century of murder and the torture of innocents, Angel's restored soul torments him with guilt and remorse. Angel moves to Los Angeles, California, after it is clear that his doomed relationship with Buffy, the vampire slayer, cannot continue. During the majority of the show, he works as a private detective in Los Angeles, where he and a variety of associates work to "help the helpless", restoring the faith and saving the souls of those who have lost their way. While he must also battle his own demonic nature, he typically battles with evil demons or humans allied to them, primarily related to Wolfram & Hart, a law firm supported by occult practices which is an extension of otherworldly demonic forces.

The show is considered by many critics as one of the best TV spin-off series of all time with praise for its darker tone, characters and performances.