The Roberts Family

The Roberts family were the Muggle managers of the campsite that hosted the 1994 Quidditch World Cup. Consisting of Mr. and Mrs. Roberts and their two children, the family was unwittingly thrust into the Wizarding world and later became the prominent victims of a horrific attack by Death Eaters following the final match between Ireland and Bulgaria. Their ordeal highlighted the cruelty of the Death Eaters and the immense effort required by the Ministry of Magic to maintain the International Statute of Secrecy.

In the summer of 1994, Mr. Roberts managed the campsite where wizards and witches from around the world gathered for the Quidditch World Cup. He was deeply perplexed and irritated by the strange behaviour of his guests, complaining to Arthur Weasley about their odd clothing (such as Archie's insistence on wearing a woman's nightdress), their magical contraptions, and their inability to use proper Muggle money. Mr. Roberts was particularly frustrated by a wizard who attempted to pay with a large gold Galleon. Throughout the day, Ministry of Magic officials were forced to repeatedly modify his memory to prevent him from becoming too suspicious of the magical activity. Following the Quidditch World Cup final, a group of masked Death Eaters attacked the campsite, specifically targeting the Muggle family. The Roberts family was magically levitated high into the air and tormented in a horrifying display. Mr. Roberts was turned upside down, his nightshirt falling to reveal his pajamas, while Mrs. Roberts was suspended by her ankles. Their two children were described as “wheeling through the air,” being tossed between the Death Eaters as if they were balls. The attack was eventually broken up by Ministry of Magic wizards. To erase the trauma and preserve secrecy, Mr. Roberts's memory was modified “very, very powerfully.” A Ministry official noted that it was the tenth time that day his memory had been altered, a testament to the sheer scale of magical exposure he had endured.

• Mr. Roberts: The campsite manager. He is depicted as a harassed but dutiful Muggle, completely bewildered by the wizards' eccentricities. He has a “ticklish-looking” mustache and is the primary point of contact for the Weasley family at the campsite. His mounting frustration is a key element in the lead-up to the Quidditch World Cup match.
• Mrs. Roberts: Mr. Roberts's wife. She is seen being tortured alongside her husband and children but has no dialogue.
• Two Children: The Robertses' two children, whose names are not given. They were also victims of the Death Eater attack, treated as playthings by the marching Dark Wizards.

The surname “Roberts” is a common patronymic surname of Welsh and English origin, meaning “son of Robert.” Its commonality likely serves to present the family as ordinary Muggles, making the magical violence inflicted upon them all the more shocking and transgressive.

In the film adaptation of Harry Potter and the Goblet of Fire, the attack on the Roberts family (renamed as the Muggle groundskeeper and his family) is visually depicted during the Death Eater riot at the campsite. However, the film omits the prior scenes showing Mr. Roberts's conversations with Arthur Weasley about the strange behaviour of the wizarding campers (film).