Callum Bates (born March 6, 2001) is the second child of Sarah and Stuart Bates. He has an older brother named Haydn and has younger twin sisters Erin and Orla.

He often felt he didn't spend much time with his mum and dad because of his twin sisters ruling the roost. Like Haydn he is well behaved, and got on well with his brother. But during the Family Test Run, he got frustrated during a family game, when his mother added a fake rule to the game.

He was 5 years old at the time and is now 17 in 2018.

During the submission, Sarah accidentally left him in the family's mini-van and came to his rescue.