Deanna Del Re (born December 31, 2004) is the daughter of Joe and Adele, the fraternal twin sister of Peter, and the younger sister of Clarissa.

Deanna is not as bad as Peter When She could be sweet, Over watched by Clarissa and even though That She is fun, but she was very defiant, extremely stubborn, a screamer and sometimes could get aggressive and wouldn't give in.

During Reinforcement Deanna went to timeout because she was laying on the floor throwing a temper tantrum. While in timeout she went to the bathroom on the floor after she refused to apologize. Jo arrived and told Mom to tell Deanna that going to the bathroom on the floor is wrong and timeout shouldn’t end faster doing that, even if she really needed to go to the bathroom and Then She has now go to bed early Tonight It’s only because Deanna wasn’t seen enough to be good as the Reason That She would scream and fought with Peter.

She was 4 years old on Supernanny and as of 2018, is 14 years old.