At the Houston Slayercon in 2005, James Marsters told the crowd that vampire blood on Buffy the Vampire Slayer and Angel was actually made of Strawberry Quik.

Glory’s brain-sucking effect was achieved by Clare Kramer pushing her fingers into a dummy head covered in blue material. In post-production, the blue head was digitally removed by computer and …

The ruins of Sunnydale High seen in 4.11 Doomed were all computer generated.

The budget for filming 1.12 Prophecy Girl didn’t allow for any major CGI, so the Hellmouth’s monster eventually became a massive tentacled thing, made by Special Effects studio Optic Nerve. Each …

Clare Kramer spoke to the BBC about the morphing process between Ben and Glory:

“The morphing (into Ben) was a big technical process, especially the first couple of times we did …

In 7.17 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 …

The effect of an invisible Buffy nibbling Spike’s ear in 6.11 Gone was apparently achieved by gluing a stick to James Marsters‘ earlobe, wiggling it about and then removing the stick …