Mackenzie Clarke (born January 1, 2006) is the youngest son of Chris and Nicky and youngest brother to Cameron (aged 4) and Josh (deceased).

He was occupied by a playpen for up to six hours, possibly due to his parents dealing with his out of control brother. This has shocked Jo who believed he should have been stimulated more.

He was 15 months old on Supernanny and now, he is now 12 years old in 2018.