Three more people have faced court over the bashing death of Indigenous teenager Cassius Turvey as he walked home from school in Perth.

Brodie Lee Palmer, 27, Mitchell Colin Forth, 24, and Aleesha Louise Gilmore, 20, briefly appeared in Perth Magistrates Court on Friday.

They have also been charged with murder over the 15-year-old’s death in Middle Swan on October 13 last year.

Palmer and Forth appeared in the court, while Gilmore was called by magistrate Sarah Oliver via a phone.

Asked if she understood the charge, Gilmore said said “yeah but” before being interrupted by Ms Oliver and told not to speak about her alleged offence.

She said she had been in hospital and had not spoken to a lawyer.

Palmer’s lawyer, Seamus Rafferty, said his client would likely plead not guilty to the charge.

Jack Steven James Brearley, 21, is already before the courts on a murder charge over the Noongar Yamatji boy’s death.

It’s alleged the three were with Brearley during the assault on the teen, who died in hospital 10 days after suffering serious head and other injuries, some inflicted with a metal pole.

Brearley remains in custody in Casuarina Prison, with his case scheduled to return to court on March 29.

The death of Cassius triggered an outpouring of grief and anger across the nation, with some Indigenous leaders condemning the alleged attack as cowardly and racist.

His mother, Mechelle Turvey, and about a dozen other family and supporters attended court court on Friday.

Outside court they held a placard saying “Remembering Cassius”.

The teenager has been remembered as a loving son and a role model to his friends. He had started his own lawn mowing business and was invited at age 11 to deliver an acknowledgement of country at the WA parliament.

Palmer, Forth and Gilmore were remanded in custody to reappear at the same court also on March 29.

– AAP