Simone Holtznagel

Career In 2011, Holtznagel auditioned for and was cast on the reality series Australia's Next Top Model. Following her appearance on Australia's Next Top Model, Holtznagel was spotted on Instagram by Paul Marciano, the co-founder of Guess. Along with fellow models Natalie Pack and Danielle Knudson, Holtznagel shot an advertisement campaign for the brand. They also took part in the Gumball 3000 rally. Not long after she moved to the United States, Holtznagel was chosen to be the face of Australian lingerie brand Elegantly Scant's Pink Ladies Campaign in 2014. Holtznagel has also featured in campaigns for Bras N Things.

In 2015, she starred alongside male model Gil Soares for a Men's Fashion Post shoot entitled American Denim. That same year, she appeared on the cover of Playboy magazine for its October college issue. She had previously turned down an offer to become a Playboy Playmate.

In January 2018, Holtznagel was revealed as a celebrity contestant on the fourth season of the Australian version of I'm a Celebrity...Get Me Out of Here!. She appeared on First Dates Australia on Seven Network in 2020. Holtznagel joked that she signed up in the hope that she would get to go somewhere new after being at home for two years because of the COVID-19 lockdown, before realising that the series was filmed in her home suburb of Wollongong.

Holtznagel has been in a relationship with personal trainer Jono Castano since 2022. and their daughter was born on 31 March 2024.