Teddy Duncan

Theodora "Teddy" Rebecca Duncan is the second oldest child of the Duncan children. She makes video diaries to guide her little sister Charlie through life. Her parents are Amy and Bob Duncan. Teddy's siblings besides Charlie are Gabe, PJ, and Toby Duncan. Teddy is portrayed by Bridgit Mendler.

Goanimate Caillou admires Teddy greatly, which makes Teddy ecstatic to have her own "groupie". Teddy, like most teenagers, does go after boys (only seen once in the show).

At one point, the birds believe she hates Rob after they hear her say she hates "Rob Cooper". however, they take it out of context as she is talking about dill pickles. At the end of the episode, the babies are relieved that she doesn't hate Rob and called him 'cute'. She is also revealed to be fond of ranger rob, saying that its cooper she hates, which is again taken out of context by the birds.

Friends: Bobby Cooper, Donnie Duck, Hil Seville, Mil Seville, Mandy Duck, Rob Cooper, Goanimate Caillou, Gabe Duncan 

Voiced by: Bridget Mendler