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, but she was very defiant, extremely stubborn, sometimes could get aggressive and wouldn't give in.

During Reinforcement Deanna went to timeout for acting defiant and threw a violent temper tantrum. While in timeout she went to the bathroom on the floor. Thankfully, Jo made sure Adele kept Deanna in timeout so that Deanna would know wetting herself during timeout wouldn't make it end faster even if she really needed to go to the bathroom.

She was 4 years old in 2009 on Supernanny and as of 2017, is 13 years old.

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