Applications for The Traitors Australia Season 4 are officially open!

Key points

• Applications are now open for the fourth Australian season of The Traitors, and for the first time since 2022 the cast will be everyday Australians rather than celebrities. Applications close on Friday 11 December 2026.
• Applicants must be at least 20 years old and be an Australian citizen, permanent resident, Australian or New Zealand passport holder, or resident of Australia. Filming is expected to begin in late summer 2027 at Castle Claremont in New Zealand's South Island.
• Gretel Killeen is confirmed to return as host, and no premiere date has been announced yet.