'The Walking Dead' season 4 surprised us all last week with a brand-new in-depth preview for the season, taking us behind prison walls to introduce new characters and aspects of the AMC monster smash's coming run. Apparently among the new faces for the year will be 'Phineas & Ferb' star Vincent Martella, so who's ready to give their children unending nightmares?

Entertainment Weekly first revealed the news of the new casting for the season, having recognized the voice actor, who plays Phineas on the hit Disney Channel series, from brief snippets in which his character appears alongside Carl (Chandler Riggs). Sources have reported Martella's character as "Patrick," one of the Woodbury influx who gives Carl a chance to interact with people his own age. The preview made it seem as if Patrick might have a few temper issues, while the character seems old enough to end up zombie fodder as well. Just sayin.'

While we await the latest details from ‘The Walking Dead’ season 4, the next run of the AMC horror-drama will introduce ‘The Wire’ star Lawrence Gilliard, Jr. as comic character Bob Stookey, 'Twilight' vet Christian Serratos as Rosita Espinosa, and upgrade actors Chad Coleman, Sonequa Martin-Green and Emily Kinney to series regulars. David Morrissey’s villainous Governor will also return in season 4 as a series regular, though beyond this season his involvement seems unlikely.

All manner of 'Walking Dead' casting news may emerge before the October 13 premiere, so take a look at Vincent Martella in the latest preview below, and give us your predictions for the new season in the comments!