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. But during the Family Test Run, he got upset during a family game.

He was 5 years old at the time and will be 16 in 2017.

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