Conversation so far:
What was Drusilla from Buffy the Vampire Slayer's personality like?
Drusilla's madness is exhibited in her often-strange dialogue, which is peppered with non sequiturs. Her behavior is girlish, accompanied by a dark, ironic twist.
What accent did Drusilla from Buffy the Vampire Slayer have?
Actress Juliet Landau said that when she first received the script, it indicated that Drusilla's accent could be British or American. Landau felt Drusilla should really be Cockney.
Did Juliet Landau end up doing a Cockney accent for her role as Drusilla in Buffy the Vampire Slayer?
Actress Juliet Landau chose to portray Drusilla with an attempted Cockney accent in keeping with the characters' Sid and Nancy analogy“.

Question: what was special about her appearance?
Self-contained rewrite: What was special about Drusilla from Buffy the Vampire Slayer's appearance?