only credited in the opening credits for one episode, and is credited as a guest star for all her other appearances. Recurring cast Guest cast Marc Blucas as Riley Finn Dean Butler as Hank Summers Kristine Sutherland as Joyce Summers Andy Umberger as D'Hoffryn Crew Series creator Joss Whedon served as executive producer, but his role was diminished as he took a hiatus to write the musical episode, and later Fox ordered a new pilot from him, Firefly. Whedon only ended up writing and directing one episode, the musical; this is also the only season where he didn't write and direct the season finale. Marti Noxon was promoted to executive producer and took over the duties of the showrunner and wrote three episodes. David Fury was promoted to co-executive producer and wrote four episodes, directing one of them, as well as writing the season finale. Jane Espenson was promoted to supervising producer and wrote or co-wrote four episodes. Douglas Petrie was promoted to producer, later to supervising producer midseason and wrote or co-wrote three episodes, including directing two of them. Steven S. DeKnight was promoted to story editor and wrote three episodes. Rebecca Rand Kirshner was promoted to story editor and wrote two episodes. New additions in the sixth season included Drew Z. Greenberg who wrote three episodes and Diego Gutierrez, who wrote a freelance episode after previously being an assistant to Whedon. David Solomon (also producer) directed the highest number of episodes in the sixth season, directing five episodes. James A. Contner (also co-producer) and David Grossman each directed three. Episodes Crossovers with Angel The sixth season of Buffy the Vampire Slayer coincided with the third season of Angel. With this season, Buffy switched networks from The WB to UPN, while Angel still remained on The WB. Because they were on competing networks, there were no official crossovers. At the time, WB Entertainment President Jordan Levin stated "There will be no crossovers between Angel and Buffy. I think it's more important, in the long term, that Angel really establishes itself as a world that obviously comes from the same mythology, but operates with its own set of principles, guidelines and characters, and really establishes itself independently from Buffy." Although there are no distinct crossovers where characters appear on the other shows, there are moments where characters are mentioned or interactions between the two series' characters occur off screen. At