The Rocky Horror Show boss has vowed his production company will do more to enforce a culture where no-one fears speaking out after allegations of sexually inappropriate behaviour against star Craig McLachlan.
Gordon Frost Organisation (GFO) managing director John Frost has apologised to the three women who made the allegations and says he's glad they came forward so their claims can be properly investigated.
"I understand why the women decided not to come to GFO with their concerns and I am sorry they felt that they may be in some way disadvantaged by making a complaint," Mr Frost said.
"I give them and all employees a commitment that we will do more to enforce a culture where no one else will ever be fearful of coming forward."
Christie Whelan Browne, Angela Scundi and Erika Heynatz, who appeared in the 2014 production of the popular musical, have told Fairfax Media and the ABC McLachlan inappropriately touched them or exposed himself.
Whelan Browne said she spoke with Mr Frost at the time indicating she was fearful of the 52-year-old.
Mr Frost said while he could recall speaking to Whelan Browne briefly in 2014, he can't recall any discussion involving McLachlan.
"I can only explain this by pointing out that I speak to many people backstage across many productions and have little time to spend with each person," he said in a statement.
The GFO boss said his company had never had an incident of this nature before and complaints of any type of bullying or harassment were very rare.
"Erika, Christie and Angela have publicly stated many times in the media that they chose not to make a complaint and that they waited some years to come forward," he said.
"I am glad they finally did so that their claims can be properly investigated."
Mr Frost said the fact the three women did not feel they could report their concerns in 2014 was "concerning and distressing".
"And, I sincerely apologise to them for this," he said.
McLachlan has not spoken publicly since the allegations were raised but has described them as "baseless" and "inventions" in a statement.