Kyle was diagnosed with attention deficit hyperactivity disorder or ADHD. He was on medication, but his parents took him off of it because they didn't find it effective (after only one month).
Kyle was the biggest problem that both Alejandra the nanny and the parents are dealing with because of his ADHD.
During Jo's observation, Kyle opened up to Jo that he was behaving in a way that he didn't want to and that he would appreciate it a lot if Jo helped the family. Jo told him that she does not think of him as a bad boy.
He tended to be very aggressive towards his siblings, parents & nanny. He would also refuse to do his homework and would get in trouble at school for not keeping his hands to himself.
Kyle was 6 years old at the time of his appearance on Supernanny and as of 2018, he is 16 years old.