Tetro's father was a well-known Jewish general practitioner, Gabriel Tetro, and her mother Sally was a full-time caregiver for her family.[1] She attended Auckland Technical Institute before entering the modelling industry,[2] following encouragement from her father.
Tetro is a former model who worked for local agent Maysie Bestall-Cohen. After five years of modelling, she became a casting agent and started her own modelling company "62 Models" in 1994.[3] She then bought the casting agency "The People Shop", with clients including Hayley Holt, Marc Ellis, Temepara George, Wendy Petrie, Michael Campbell, and Doug Howlett. She manages a staff of six.
Television producer Julie Christie then cast Tetro to appear on the reality series Treasure Island, where she stranded fellow contestants Peggy Bourne and Simon Doull.
In 2018 Tetro was flown to Antarctica by Antarctica New Zealand as a consultant, which caused comment as her husband was on the board of directors for Antarctica New Zealand.[7]
