The pair will appear before magistrates on Monday.
Two more men have been charged with the murder of a 17 year old from Cardiff.
Harry Baker was found at Barry Docks on Wednesday morning.
A 32 and 47 year old man will appear before Cardiff Magistrates tomorrow.
Another two men, aged 21 and 22, have also been arrested in connection with the investigation.
On Saturday, 36-year-old Peter McCarthy and 33-year-old Ryan Palmer - both from Barry - appeared before Cardiff Magistrates Court charged with murder.
They will appear before the city's Crown Court tomorrow.
Harry's family have been updated and continue to be supported by specially-trained family liaison officers.
Officers were called at around 5.50am on Wednesday, August 28, to Barry Intermodal Terminal, Wimborne Road, following the discovery of the body of Harry Baker, 17, from Cardiff.
Senior Investigating Officer, Detective Chief Inspector Mark O'Shea, Major Crime Investigations Team, said: "We would very much like to thank the community for the support and information that has already been provided and would urge anyone else with information to please contact us.
"We are in particular appealing for information in relation to a disturbance that is now known to have occurred between midnight and 1am in and around the Vere Street, Arno Road and Littlemoors Hill area of Barry. It is now believed that this disturbance spilled on to Cardiff Road and Millennium Road.
"If anyone has CCTV that covers these locations or anyone who may have been driving through these locations with cameras mounted on their vehicles I would please ask them to contact the incident room.
"I would also appeal for anyone travelling on roads between Barry and the Ely of Cardiff between 1130pm and 1 am who may have cameras mounted on their vehicles to contact the incident room.
"We would like to obtain CCTV and dash cam footage of the main routes between Barry and the Ely area of Cardiff to assist us in investigating this crime."
Information and digital footage can be submitted online via https://mipp.police.uk/operation/62SWP19A93-PO1
Alternatively, you can call South Wales Police via 101 or Crimestoppers anonymously on 0800 555 111 quoting occurrence number 1900317375.