John Mark Cocks (23 August 1966 – 6 February 2019), also known as 'Cocksy', was a New Zealand celebrity builder and television presenter.

His prominent role on television is a builder and renovator, though he has worked on other projects that are not related to building in his career.

[3] After this Cocks then started appearing on the popular New Zealand home renovation TV show My House My Castle as the building consultant and builder.

[5][6] Cocks was also the voice and face of the Carters Building Supplies commercials in the early 2000s.

[7] alongside Amy Schaeffer and later in 2015 on My Dream Room: Kids Edition with television and radio host Mel Homer.