In earlier versions of Wonder Bread’s anthropomorphic mascot—“Freddy, the Fresh Guy”—he is clearly a full-fledged anthropomorphic package—a loaf of bread in a branded bread bag. (In later versions he seems like a single slice of bread.)
Regarding the different outfits, my sense is that the Freddy with the bow tie is the earliest—(as in the upper center photo from Thomas Hawk’s Flickr Photostream)—but I could be wrong about that.
The upper right photo from Ken B. Miller’s Flickr Photostream shows a costumed mascot in 2004 at the Philadelphia Zoo.
And along with the Fresh Guy antho-pack, there are also consumer costumes allowing one to inhabit a Wonder Bread persona…
See also: Packaging Costumes
(A “Fresh Guys” ad, after the fold…)