United Kingdom, Dec. 31 -- Miriam Margolyes was so "naughty" in an interview, most of her chat was unbroadcastable.

The Harry Potter actress was a "favourite" guest of Capital Breakfast hosts Sian Welby, Jordan North and Chris Stark this year but the trio admitted they "abused" their button to censor her words so much, the audience barely got to hear any of their discussion.

Sian exclusively told BANG Showbiz of Miriam: "Oh she's very naughty."

Jordan agreed: Very naughty, one of our favourite guests this year, we had her on recently."

Sian continued: "Because Miriam, we have a special button for like, when you can't put whatever is being said out on air and we abuse that button, we abused it so much there was only a little bit of tha...