Question: Angel is a fictional character created by who, 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, an American actor, television producer, and director, known for playing vampire-turned-private investigator Angel on "Buffy the Vampire Slayer" (1997–2003) and its spinoff "Angel" (1999–2004)?
Context: "Angel" is the seventh episode of season 1 of the television series "Buffy the Vampire Slayer".  It was written by co-executive producer David Greenwalt and directed by Scott Brazil.  The narrative follows Buffy Summers (Sarah Michelle Gellar), vampire slayer, coming to terms with her feelings for Angel (David Boreanaz), who is revealed to be a vampire cursed with a soul.  However, Darla (Julie Benz) is playing a deadly game manipulating both Buffy and Angel to the Master's (Mark Metcalf) will. Drusilla, or Dru, is a fictional character created by Joss Whedon and David Greenwalt for the American television series, "Buffy the Vampire Slayer" and "Angel".  The character is portrayed by American actress Juliet Landau.  Drusilla is introduced alongside her lover Spike (James Marsters) in the second season of "Buffy the Vampire Slayer" to serve as new antagonists to the series' heroine, vampire Slayer Buffy Summers (Sarah Michelle Gellar) and alongside Darla (Julie Benz) and Wolfram & Hart as the main antagonist of the second season of Angel.  In contrast to the series' previous central villain, the ancient and ceremonious Master (Mark Metcalf), Spike and Dru were introduced as a more unconventional but equally dangerous pair of vampires. This article lists the major and recurring fictional characters created by Joss Whedon and the writers of Mutant Enemy for the cult hit television program, "Angel".  For a more in-depth look at some of the minor characters on the show, please see the list of minor "Angel" characters.  For the characters of "Angel"'s parent show "Buffy the Vampire Slayer", please see list of "Buffy the Vampire Slayer" characters and list of minor "Buffy the Vampire Slayer" characters. Angel is an American television series, a spin-off from the television series "Buffy the Vampire Slayer".  The series was created by "Buffy"' s creator, 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. Faith is a fictional character created by Joss Whedon for the television series "Buffy the Vampire Slayer".  Played by actress Eliza Dushku, Faith was introduced in the third season of "Buffy" and was a focus of that season's overarching plot.  She returned for shorter story arcs on "Buffy" and its spin-off, "Angel".  The character's story is continued in the comic book series "Buffy the Vampire Slayer Season Eight", and she also appears in apocryphal material such as other comic books and novels.  Faith was set to receive her own spin-off television series after the final season of "Buffy", but Eliza Dushku declined the offer, and the series was never made.  The character later co-stars in the 25-issue comic book "Angel & Faith" beginning in August 2011 under the banner of "Buffy the Vampire Slayer Season Nine", the story taking place mostly in London and the surrounding area.  Seven years after the character's creation, Whedon granted her the surname Lehane for a role-playing game and subsequent material.  The last issue of "Season Eight" was the first source officially confirmed to be canon that referred to Faith by her full name. David Boreanaz (pronounced , ] ; born May 16, 1969) is an American actor, television producer, and director, known for playing vampire-turned-private investigator Angel on "Buffy the Vampire Slayer" (1997–2003) and its spinoff "Angel" (1999–2004), and FBI Special Agent Seeley Booth on the television crime procedural comedy-drama series "Bones" (2005–2017). Cordelia Chase is a fictional character created by Joss Whedon for the television series "Buffy the Vampire Slayer"; she also appeared on "Buffy's" spin-off series, "Angel".  Portrayed by Charisma Carpenter, the character appears as a series regular in the first three seasons of "Buffy", before exiting the show and becoming a series regular during the first four seasons of "Angel".  The character made her last television appearance in 2004, appearing as a special guest star in "Angel"<nowiki>'</nowiki>s one hundredth episode.  Cordelia also appears in both canonical and apocryphal "Buffy" and "Angel" material such as comic books and novels. Buffy the Vampire Slayer is an American franchise which spans several media and genres.  It began in 1992 with the film "Buffy the Vampire Slayer", written by Joss Whedon and directed by Fran Rubel Kuzui, and was resurrected as the television series, "Buffy the Vampire Slayer" in 1997.  The show's popularity caused it to spawn a multitude of Expanded Universe tie-in material such as comic books, novels, and video games, as well as a spin-off program entitled "Angel".  In 2007, four years after the television series' seventh and final season, "Buffy the Vampire Slayer" was officially continued in the comic book "Season Eight".  The following is a list of minor recurring characters who appear in the franchise. Buffy Anne Summers is the titular character from the "Buffy the Vampire Slayer" franchise.  She first appeared in the 1992 film "Buffy the Vampire Slayer" before going on to appear in the television series and subsequent comic book of the same name.  The character has also appeared in the spin-off series "Angel", as well as numerous non-canon expanded universe material, such as novels, comics, and video games.  Buffy was portrayed by Kristy Swanson in the film, and later by Sarah Michelle Gellar in the television series.  Giselle Loren has lent her voice to the character in both the "Buffy" video games and an unproduced animated series, while Kelly Albanese lent her voice to the character in the "Buffy the Vampire Slayer Season Eight" motion comics. 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 (Sarah Michelle Gellar), 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.  Angel appears in the most television episodes of all the characters of both "Buffy the Vampire Slayer" and "Angel", appearing in 167 episodes (57 in "Buffy" and all 110 in "Angel").
Answer: Joss Whedon