Son of Australian musician/author Nick Cave. Jethro began work as a model after being discovered in Melbourne, Australia. Often unfairly accused of nepotism , Jethro actually never knew his father until the age of eight. Since his career in modeling took off around 2007, Jethro has carved out a niche for himself out from under his father's shadow.
Jethro is also very interested in music, and plays the piano. He also sings and has a history of performing as a rapper.
Half brother of Luke Cave (b.1991), from Nick's Cave relationship with Brazilian journalist Viviane Carneiro. Also half brother of twins Arthur and Earl (b.2000) from Nick Cave's marriage with Susie Bick.