A BBC probe has exposed that Married at First Sight Australia matched several contestants with men who had previous criminal records for drug use and violence, a fact that was not disclosed during the casting process.

The first to speak out was Sierah Swepstone, who was paired with Billy Belcher, who had a 2014 drug conviction. Swepstone said she learned of the conviction only after the season finished, arguing that informed consent should have been provided.

Other former cast members confirmed that their partners had been known to the production with a history of conflict and aggressive behaviour. One anonymous participant, referred to as Anna, said she was placed in close proximity to a man who had a violent temper and was aware of his past through on‑set revelations.

The investigation also cites men such as Adrian Araouzou, who was convicted for affray in 2017, and Timothy Smith, who served a US prison sentence for drug trafficking. In each case, the participants’ partners were not informed of these backgrounds during their pairing.

Channel 9 and Endemol Shine Australia respond that all participants undergo multi‑stage checks that include police, medical, and legal due diligence. They claim the information about past convictions was either absent or not deemed critical for the show’s safety standards.

Despite the broadcasters’ statements, the cast and some former participants argue the checks were rushed and that the lack of disclosure put them at risk. They urge the industry to treat criminal histories as a serious safeguarding issue rather than a simple tick‑box.

The UK version of Married at First Sight faced a crisis when rape allegations were reported for two women contestants, leading Channel 4 to pull all UK episodes from its streaming platform. MAFS Australia remains available for streaming.

The series calls for better background checks and transparent disclosure, as well as a review of the safeguarding policies used in reality television production. The investigation highlights that participants are vulnerable, and that producers must take responsibility for their safety when pairing strangers.