He set the fire alarm off at 03.00 in the morning at QPR's residence prior to the play-off final on Sunday.
Althought none of the players were evacuated, many were awaken according to a spokeswoman for QPR.
MacNamara, 39, from Cardiff, has been bailed to appear before Newport magistrates on 5 June.
Two hundred people had to leave the Celtic Manor Hotel, near Newport, south-east Wales, in the early hours of the morning, while an alarm was investigated.
Lets hope that these cheats get the luck they deserve...