Meryl Williams, who shared the £101,050 prize in the first series of the game show, said four teenagers made comments about her dwarfism during the train journey.
In a TikTok post on Monday, she said she was “hiding in the toilets” to get away from the abuse.
Williams, a former call centre agent, said: “I got on the train, they sat opposite me because I’m sitting on the seats with tables, and so far they’ve said that I need a stepladder to get on the train, I need a stepladder to get off the train, I’m a midget, they’ve watched dwarf throwing, they’ve taken videos of me, they’ve taken photos of me, they said I’ve got sausage fingers, and they’ve laughed at me.
(Image: Meryl Williams TikTok) Most read
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(Image: NORTHERN ECHO) “This is all in the space of 10 minutes.
“I’m on my own right now. Everyone around me has witnessed this, heard this, and no one’s said anything.
“I don’t know what to do. So I thought, I know they’re getting off at Durham, and right now they got on at Newcastle.
“I’m going to wait in the toilet until the Durham stop, and then I’ll go out.”
@merylwilliamsx The side you don’t see #dwarfismawareness ♬ original sound – Meryl Williams
Williams said living with dwarfism means she is an easy target because people “notice you straight away”.
She had previously told ITV’s Good Morning Britain that she had received “some negative comments” after appearing on The Traitors in 2023 but was able to deal with it as she had experienced this on a “day-to-day basis”.
Williams, 28, said that by doing the BBC psychological reality show she had hoped to change people’s perceptions so they are kinder “if they see someone in public with my condition”.
British Transport Police have been contacted for comment about the train incident.