David Paul Boreanaz is an American actor, television producer, and director known for playing the roles of vampire-turned-private investigator Angel on The WB/UPN supernatural drama Buffy the Vampire Slayer (1997–2003) and its spinoff Angel (1999–2004); FBI Special Agent Seeley Booth, a homicide investigator, on the Fox television crime procedural comedy-drama series Bones (2005–2017); and United States Navy SEAL Master Chief Special Warfare Operator Jason Hayes in the CBS/Paramount+ military drama series SEAL Team (2017–present).

Angel is a fictional character created by Joss Whedon and David Greenwalt for the American television programs Buffy the Vampire Slayer and its spin-off series Angel. The character is portrayed by actor David Boreanaz. As introduced in Buffy in 1997, Angel is a love interest for heroine Buffy Summers, a young woman whose destiny as "the Slayer" is to fight the forces of evil, such as vampires and demons. However, their relationship is complicated by the fact that Angel is himself a vampire cursed with remorse and a human soul, which motivates him to assist Buffy in her duties as Slayer. The character's popularity led to the production of the spin-off Angel, which follows the character's struggle towards redemption after moving to Los Angeles. In addition to the two television series, the character appears in the comic book continuations of both series, as well as much other expanded universe literature.