Up to 20 inebriated holidaymakers in costumes clashed at around 1am in the camp’s clubhouse.
Police were called to the scene after two members of staff were assaulted.
The man dressed as an Oompa-Loompa character from the film Charlie and the Chocolate Factory, is thought to be a 47-year-old father.
He and two others were kept in police cells overnight after being questioned on suspicion of violent disorder.
A staff member at the holiday park told The Sun newspaper: “It was rather comical in some ways because of the fancy dress costumes people were wearing.
“You don’t expect to see Teletubby Tinky Winky and Spiderman in the middle of things like this.”
He added: “It was a case of too much booze being knocked back and then something happened which kicked things off.”
There were no serious injuries.
A Devon and Cornwall police spokesman said alleged culprits were identified “by what they were wearing”.