Kent Police was called to the village at 5.40pm on Tuesday 8 December 2020 following a report of a fire at a residential property.
The fire was extinguished by Kent Fire and Rescue Service and nobody at the property was injured.
Officers arrested two men shortly after the fire and a third man was detained at around 1am the following morning.
A Kent Police officer required hospital treatment for injuries sustained during one of the arrests but has since been discharged.
Michael Bumstead, of Dengemarsh Road, Romney Marsh, has been charged with arson with intent to endanger life, attempting to cause grievous bodily harm, making a threat to kill and two counts of assaulting an emergency worker.
The 21-year-old appeared before Folkestone Magistrates’ Court on Thursday 10 December and was remanded in custody to appear at Canterbury Crown Court on Monday 11 January 2021.
A 22-year-old man and an 18-year-old man, both from the Ashford area, have been bailed until Tuesday 5 January 2021.