10. Three Incarnations Of The Flash - Shells
In the Angel episode "Shells", Illyria had just slowed down time in order for her and Knox to escape the Wolfram and Hart building when this conversation occurred...
Angel: "Any idea how she got past you?"
Charles Gunn: "One second she was standing there, the next, poof."
Angel: "She's a teleporter?"
Wesley Wyndam-Pryce: "I don't think so. No characteristic displacement of the atmosphere around her."
Spike: "I fancied I saw a blur just before she went Houdini."
Charles Gunn: "Yeah, like she was pulling a Barry Allen (Angel looks at him, not recognizing the name; Gunn looks around at the others). Jay Garrick? Wally - Like she was moving really fast." Gunn is referring to the Flash - the name of whom has been given to the characters Barry Allen, Jay Garrick and Wally West in the world of DC Comics. Flash is, of course, a very fast character and since it appeared that Illyria was moving really fast, he was comparing her to him.