John Joseph "JJ" Colombo (born June 29, 2007) is the middle child of Danielle and Joe, the younger brother of Carlo and the older brother of Julia.

He was the worst one out of the three Colombo kids. He was aggressive and acted out with hitting, kicking, pinching, hair pulling and punching. He also talked rudely and yelled a lot.

He also hid under a bed when his mom threatened a time out!

When it came to his nap-time, Danielle and Jo actually argued about it.

He was 3 years old in 2011 and of 2018, he is 11 years old.