Haydn Bates (born May 4th, 1999) is the oldest of the four children and was often overlooked like his brother Callum. He has two younger sisters named Erin and Orla.

As he was the oldest, he was often getting blamed for everything by Sarah, when not being ignored in favor of the twins. He explains that due to the inattention, all he has to do at home is play on the computer, but he doesn't want to do that. When being ignored by Sarah, Hadyn would look after his similarly well-behaved little brother, Callum, who was also ignored by Sarah.

He was 7 years old when he appeared on Supernanny and is nearly 19 in 2018

Despite him being well behaved, during the family test run, he got a timeout for splashing his mum, causing her to get all soaking wet. This was because Sarah was uptight and not allowing her kids to be kids.