In the episode Anne, there is a shot of a lonely-looking woman standing on the streets of L.A. The same image is used in the opening credits of the spin-off series Angel.

The first trailer for the spin-off show Angel aired during Graduation Day (Part 1). It showed Angel against a red background with the words: “Angel: This Fall”.

A special waterproof floor was built for the flooded basement set in Flooded. Sarah Michelle Gellar and Michelle Trachtenberg allowed themselves to be soaked during filming, and Doug Petrie (the writer of the episode) bought Sarah a special towel with her name on it for braving the icy water. What …

In Lies My Parents Told Me, we see a scene set in New York, where Spike and Nikki are fighting in the rain. Fake rain was added digitally to the shots but it looked terrible so the graphics had to be removed just the day before the episode aired.

The hold of the plane that Kendra arrived in, in What’s My Line? (Part 1), was saved and changed so that it could be used as a sewer tunnel in later episodes.

The ice rink seen in the episode What’s My Line? (Part 1) is called Iceland, and is located at 8041 Jackson Street in Paramount, California. This is fairly close (about 25 miles) from where Buffy is filmed on set. In that episode, Angel invites Buffy to go ice skating by …

Joss Whedon says that in Buffy’s dream sequence in the lecture hall in Hush, he wanted the set to look as full as possible so got everyone who was on set or in the production office that day to sit in the hall. He even sat people in the aisles …

The library set in which we see Willow and Cassie talk in Conversations with Dead People was the old school library set from seasons one to three.
Source: DVD commentary for Conversations with Dead People

Spike, Drusilla and, later, Angel’s, lair during season two was an old abandoned factory in Sunnydale. It was burned down in Passion when Giles tried to kill Angelus for murdering Jenny. The vampires then moved to a mansion on Crawford Street. The set itself was torn down to make room …

In The Puppet Show, Xander holds up Sid the Dummy and says, “Redrum, Redrum”. Redrum is from Stephen King’s novel The Shining, and for those not in the know, it’s ‘murder’ spelt backwards. The Shining was made into a movie starring Jack Nicholson as Jack Torrance.
In Gone, Buffy says, “All …

In Chosen, Andrew flips back his red hood and says, “step back, girlfriend”. This was an ad lib on the part of Tom Lenk.

Several Buffy actors have appeared in Joss Whedon’s show Firefly: Nathan Fillion (Caleb), Andy Umberger (D’Hoffryn), Jonathan M. Woodward (Holden Webster), Carlos Jacott (Ken in Anne), Bob Fimaini (Mr. Ward, Head of the Initiative), Angie Hart (singer in various episodes), Ira Streck (vampire in Lies My Parents Told Me), Franc …

Five actors have appeared in all three of Joss’s TV shows:
1) Andy Umberger: played D’Hoffryn in Buffy; Dr. Ronald Meltzer in the Angel episode ‘I Fall To Pieces‘; and Dortmunder Captain in the Firefly episode ‘Serenity’.
2) Carlos Jacott: played Ken in the Buffy episode Anne; Lawrence Dobson in the …

In 2002, Joss Whedon created a TV show called Firefly, described as a Western in space. It was cancelled after only a few episodes, angering many fans, who felt the show had potential. Joss worked on the show during season six of Buffy. Nathan Fillion, who played Caleb in season …

James Marsters played the English vampire Spike though he’s actually Californian. He was born in the northern logging town of Greenville, California, and raised in Modesto, California.
James studied at Juilliard then did a lot of theatre acting. He appeared in episodes of Andromeda, Northern Exposure and Strange Frequency. He had …