Entertainment Weekly reunites the cast of ‘Angel’ the beloved spinoff of ‘Buffy the Vampire Slayer’. Twenty years after the premiere, David Boreanaz, Charisma Carpenter, Alexis Denisof, J. August Richards, Amy Acker, James Marsters and co-creator David Greenwalt share their favorite memories and behind-the-scenes stories from the making of this fan-favorite series.