Art and Barney are the two sons of Stewart Green and Donna Stewart and the brothers of Emma Stewart. Like their father, both Art and Barney love to play football, and joined the football team coached by their dad. They often tease Emma, and once broke her stuffed bear, Teddy McFluffinton. They also seem to like Morty Bumble, a famous football player.
- Themselves in "It's A Meaningful Life"
- Themsevles in "MacLarry and the Barberbarians"