Angel was a spin off series from Buffy The Vampire Slayer which ran for 5 seasons.
Regular Cast
Alexis Denisof (Wesley Wyndham-Price)
Amy Acker (Winifred "Fred" Burkle/Illyria)
Andy Hallett (Lorne)
Charisma Carpenter (Cordelia Chase)
David Boreanaz (Angel) & Sarah Michelle Gellar (Buffy Summers)
Glenn Quinn (Allen Francis Doyle)
J. August Richards (Charles Gunn) & Stephanie Romanov (Lilah Morgan)
James Marsters (Spike)
Mercedes McNab (Harmony Kendall)
Recurring Characters
Adam Baldwin (Hamilton)
Alyson Hannigan (Willow Rosenberg)
Christian Kane (Lindsay McDonald)
Elisabeth Rohm (Detective Kate Lockley)
Eliza Dushku (Faith)
Julie Benz (Darla)
Juliet Landau (Drusilla)
Laurel Holloman (Justine Cooper)
Mark Lutz (Groosalugg)
Sam Anderson (Holland Manners)
Sarah Michelle Gellar (Buffy Summers)
Tom Lenk (Andrew Wells)
Guest Artists & Crew
Adrienne Wilkinson (Flapper)
Bai Ling (Jhiera)
David Monahan (Garrett)
Jack Kehler (Manny)
Seth Green (Daniel "Oz" Osbourne)
Jane Espenson (Writer)
Joss Whedon (Writer/Producer/Director/Creator)
Sean Astin (Director)
Steve Tartalia (Spike double)