As The Governess on ITV's hit teatime gameshow, Anne is known to millions for her formidable general knowledge.
It has also provided a source of entertainment for her fellow jungle stars, who have relished finding out about the world of quizzing.
John Barrowman took another chance to grill Anne yesterday, testing her geography prowess.
"Sometimes when we’re all by ourselves it gets quiet," he explained. "Rather than sit around doing nothing, I find it interesting to give Anne a bit of a challenge and see what fun facts she has in her head."
The Torchwood star asked her: "If I was to say a country's name, could you give me a fact about it?"
"I could probably tell you its capital, but I might be able to give you an interesting fact," she replied.
Uzbekistan was the first nation that came to John's mind.
"It is one of only two countries in the world that are double landlocked," Anne revealed.
Emily Atack learned something new when she asked what landlocked means. "They don’t touch the sea at any point," Anne explained.
Prompted for a fact on Mexico, she continued: "Its largest province is named after the smallest dog – a Chihuahua."
However, it was her statement on the United States that really impressed the campmates.
"Arghhh, the United States of America appears to have got itself ruled by a complete f**kwit," she said, as the group burst out laughing.
"I totally agree, that’s the only fact we need right now," replied John.
Visiting the Bush Telegraph, Anne said she's more than happy to share her talent - as she's been feeling "helpless".
"I’m loving it, I’m being asked to do what I’m good at," she commented. "There are so many things I’m not good at, like cooking and washing.
"I feel so helpless around camp that it’s nice to find something I can do that interests people."
I'm A Celebrity airs nightly at 9.00pm on ITV, with Extra Camp straight afterwards on ITV2.