SheepSheep had a long history with VeggieTales. They originally appeared in Dave and the Giant Pickle, where David and his brothers had to take care of. Unfortunately, they tip over a lot, which give the brothers the advantage to tell David what to do. The design of the original sheep is that their eyes are simplistic black beads and they have lots of wool. Their only movements they have besides their eyes and mouth are just hopping. This design was used up until VeggieTales Christmas Spectacular.
The sheep were then redesigned in Jonah. They now have slightly bigger heads, more detailed eyes and they apparently have less wool. However, they can now more leg movements than their previous design.
Benny the PupIn the Silly Song Donuts for Benny, Benny was a stray pup who lives outside of a donut shop, begging for donuts. Mr. Lunt encourages the costumers to give Benny donuts since he loves the pastries. Which results Benny very hyperactive and dances with Mr. Lunt, and tossing him around.
Brian Roberts states in the commentary that he doesn't know if Benny willl show up again because he kinda messes the scale of between the Veggie characters and the animals, even though they used animals prior to Benny that are the same size as him.