A while back we told you about how Simon Pegg and Nick Frost are reprising their Shaun of The Dead characters for the Halloween Special of Phineas and Ferb. Well now we have a bit more information and our first clip. The episode is titled Night of the Living Pharmacists. Obviously the special is inspired by classic Night of the Living Dead. Doofenshmirtz creates another Inators that turns the Danville citizens into Doof-zombies. The special will also feature the Night of the Living Dead director George Romero as a reporter named Don. The special is set to premier Saturday, October 4th at 8pm, and be an hour long.