Bridget Deadman, 17, was one of ten travellers who have taken part in Thelma's Gypsy Girls.
The series follows dressmaker Thelma Madine as she teaches ten girls how to make their lavish wedding gowns.
However, Deadman has criticised the show for portraying the girls taking part as "freaks".
"Thelma wasn't interested in teaching us anything. It was just a freak show which made us look violent, tarty and stupid. At times it was like being on Jeremy Kyle," she told The Sun.
"Every stereotype there is about gypsies was pushed to the hilt and Thelma and the camera crew seemingly ignored anything that didn't fit that image."
The teenager added: "The crew were determined to make us look wild. The whole thing was disgusting. We trusted Thelma to help us learn a skill."
A spokesperson for Channel 4 dismissed the claims, stating: "The series is a fair and accurate reflection of what the programme makers experienced during filming and we refute any allegation that the show was constructed.
"The girls who stuck with Thelma's course have said that it has been a positive and life-changing experience for them and their families."
Thelma's Gypsy Girls continues on Sunday at 9pm on Channel 4.