Kirstie Alley is exposing Twitter.com users who have sent her teenage daughter "creepy" online messages.
The former Cheers star has over 600,000 followers on the social networking site, and, on Saturday, she encouraged her fans to check out her daughter's new Twitter page.
But the actress was furious when the 15 year old began receiving "creepy" messages from strangers - and now she's warning them off by threatening to make their Twitter lives "hell."
In a series of posts on the social networking site, Alley writes,"I requested that u follow my daughter last night on twitter. I read some really creepy stuff on some of your timelines. Please do not follow her if your intention is to be a nasty person. I will make your life on here hell by exposing your comments. So DON'T go there!
"People F (f**k) with my children, there is no limit to what I will do to defend them. WE CAN READ THE S**T you FREAKS say about our kids. MY daughters site is @LillieColtrain ... she is just 15 and a really good kid. She's having fun on twitter. F with her, and I will EXPOSE you."
The actress proceeded to name one offender, before declaring, "ONE of the people who MADE NASTY remarks about my child. I will see to it that you are blocked by her and anyone else I know."