|Portrayed by||Mia Talerico|
|Siblings|| P.J. Duncan|
|Parents|| Amy Duncan|
|Grandparents|| Linda Duncan|
Hank Blankenhooper Chet Brown Step-grandfather
|Love Interests||Randy Bouvier|
She is a very cute, lovable, and funny baby. As she adjusts to her "special" family Charlie is shown to be a "special" part of her family too. She is loved by almost everyone she sees.
PJ and Gabe took her to the park, they ran into a photographer and he wanted to take some photos of Charlie.
Gabe says to Charlie that she ruined his life, on the video diary. Gabe says that since Charlie was born, everyone is ignoring him. He likes it when Charlie pukes milk on Teddy ("Study Date"). Gabe says he's only at Charlie's first birthday party for cake ("Charlie is 1").
However, Gabe cares for Charlie at times. When Gabe's enemy Hugo saw Charlie stole the glasses, he was worried. He helped distract Hugo by making a mess to Hugo and his store ("Charlie Did It!"). Gabe seemed very upset when Jo attacked Charlie's appearance for her own campaign ("Duncan's Got Talent"). Gabe tried taking care of Charlie when the rest of the family left. He tried feeding her, trying different fruits. He made a shirt diaper for her when he ran out of diapers ("Charlie in Charge").
PJ sometimes uses Charlie to get girls.
It is obvious that Teddy loves her little sister, Charlie. She makes video diaries for her in every episode.
Charlie might have felt sorry for Mason that he didn`t win the race but might have a crush.
- PJ calls Charlie "Snoop Charlie Char." ("Driving Mrs. Dabney").