A 32-year-old man has become the fifth person to be charged in relation to a house fire in Rhondda Cynon Taf.
One house was badly damaged and others were evacuated following the blaze in Protheroe Street, Ferndale, on 28 July.
There were no serious injuries, but some residents were treated for smoke inhalation.
Lewis Manito, from Weston-super-Mare, has been charged with arson with intent to endanger life.
Storm Truman, 19, Auryn Guster, 19, Connor Pitt, 23 and Alfie Wheeler, 18, all from Weston-super-Mare, appeared in Merthyr Tydfil Magistrates’ Court on 30 July charged with arson with intent to endanger life.
Mr Wheeler was also charged with possessing a knife blade or a sharp pointed article in a public place.
No pleas were entered.
All five remain in police custody ahead of their next court appearance.