Mandurah Detectives have charged a 23-year-old Dudley Park man, following a brick attack on a couple in the Smart Street Mall on Anzac Day.
Police will allege the accused was with a group of men, when they allegedly started a fight with the pair at a local nightclub.
The 27-year-old man and woman in her 20s were taken to Peel Health Campus with head injuries.
The man is expected to appear in the Perth Magistrates Court on Friday facing one charge of intending to cause harm.
Police and detectives are still hunting for the other members of the group and have urged people with information to call Crime Stoppers on 1800 333 000 or to make a report online at www.crimestopperswa.com.au.