Buffy the Vampire Slayer Denisof were followed later by Mercedes McNab (Harmony Kendall) and James Marsters (Spike). Several actors and actresses who played "Buffy" characters made guest appearances on "Angel", including Seth Green (Daniel "Oz" Osbourne), Sarah Michelle Gellar (Buffy Summers), Eliza Dushku (Faith), Tom Lenk (Andrew Wells), Alyson Hannigan (Willow Rosenberg), Julie Benz (Darla), Mark Metcalf (The Master), Julia Lee (Anne Steele) and Juliet Landau (Drusilla). Angel also continued to appear occasionally on "Buffy". The storyline has been continued in the comic book series "" published by IDW Publishing and later "Angel and Faith" published by Dark Horse Comics. Outside of the TV
Undeveloped Buffy the Vampire Slayer spinoffs the way". Undeveloped Buffy the Vampire Slayer spinoffs The popular fictional Buffyverse established by TV series, "Buffy the Vampire Slayer" and "Angel" has led to attempts to develop more commercially viable programs set in the fictional 'Buffyverse'. However some of these projects remain undeveloped for various reasons: sometimes, vital cast members may be unavailable; alternatively, studios and networks which would provide capital for the spinoffs might remain unconvinced that such projects are financially viable. From 2007 onwards, many ideas for unproduced "Buffy" spin-offs found their way into canonical comic books. Ideas for "Faith" were utilised in Dark Horse Comics' "Buffy