Park Lane
Tudor Simionov was stabbed to death as he tried to stop gatecrashers storming a party.
Ahmed Munajed is due to appear at Westminster Magistrates' Court on Wednesday.
Scotland Yard is appealing for information about Ossama Hamed, 25, and 23-year-old Nor Aden Hamada.
A 26-year-old man is being held on suspicion of murder at a central London police station, officers said.
The club, called Drama Park Lane, is 'urgently investigating' the allegations.
