Radio New Zealand - Te Reo Irirangi o Aotearoa

Warwick was born and raised in Christchurch. This is where he auditioned for the then NZBC, and was posted to Greymouth for six months in 1967.

He worked in Christchurch for 3ZB and CHTV3 from 1968 until 1975, then fronted the Television One local News until 1977 when he was transferred to TV1's headquarters at Avalon, Lower Hutt.

He spent thirteen most enjoyable years there working firstly as a reporter and presenter in the Network News until Television One went to Auckland, whereupon he worked on various feature programmes such as Fair Go and Country Calendar.

Warwick began his present work as a newsreader for National Radio from 1990.