I Left My Neck in San Francisco

I Left My Neck in San Francisco is the tenth episode of Scooby-Doo and Scrappy-Doo.

Premise
The gang heads off to Alcatraz Island, on a tour. When there, they meet The Lady Vampire of the Bay, who resemble Daphne a lot. Is it her, or one of the other tourists who are very mysterious?

Cast and Characters

 * Don Messick as Scooby-Doo and Scrappy-Doo
 * Casey Kasem as Shaggy Rogers
 * Heather North as Daphne Blake
 * Frank Welker as Fred Jones
 * Patricia Stevens as Velma Dinkley