- "I am really thrilled. It feels like the perfect timing, the perfect role and the character is going to be a lot of fun to play."
- ―Erika Heynatz on getting the role of Charlotte King.[[src]]
Heynatz hosted the first two cycles of the Foxtel reality TV show Australia's Next Top Model and the only season of the Ten Network's The Hot House. She demonstrated a commitment to a singing career by leaving her Australia's Next Top Model job, which went to Australian lads mag girl Jodhi Meares. Heynatz left Australia's Next Top Model to pursue her singing and her commitment to appear on the Seven Network's celebrity singing contest It Takes Two in 2006. Paired with David Hobson as her tutor, she eventually won the contest.
Heynatz appears in Rockstar Games L.A. Noire, as Elsa Lichtmann, which is produced using advanced motion capture technology. Although her character performs several 1940s-style songs in the game, synthpop singer Claudia Brücken performed those vocals.
In 2013, she appeared in the musical Legally Blonde as Brooke Windham. Also in 2014 she starred as the Usherette and Magenta in the Australian tour of The Rocky Horror Show.
In 2015, it was announced that Heynatz had joined Seven Network soap opera Home and Away in a recurring role as school teacher Charlotte King. She first appeared on screen in June.