From ScreenCrush.com:
The Disney Channel’s long-running ‘Phineas and Ferb’ has managed some impressive guest stars and tribute episodes in recent years, but its latest get is a slice of fried gold. Ten years after its release, ‘Shaun of the Dead’ stars Simon Pegg and Nick Frost have announced that iconic zombie-killers Ed and Shaun will return in animated form for a forthcoming Halloween special of ‘Phineas and Ferb.’
Here’s news, @nickjfrost and myself will be once again stepping into Shaun and Ed’s shoes for the #PhineasAndFerb Halloween special. W00t!!
— Simon Pegg (@simonpegg) August 18, 2014