The eighth series of Chain Reaction is now in full swing and continues tonight at 6.30pm with actor Rebecca Front on hosting duties. She'll be talking to her co-star from political comedy The Thick of It, Chris Addison. (You can listen to a sneaky clip here.)
After tonight's programme ends, you can grab your own slice of the interview action by heading to this page and joining our live webchat with Rebecca's guest, Chris Addison. He'll be on the BBC Radio 4 website from 7pm and will be with us for a full hour, answering as many questions as he can.
Please note that this is a moderated webchat, which means that we'll be receiving and reading all of your comments before selecting those we think Chris can answer.
If you're wondering what to ask, why not take a look at our interviews with our first Chain Reaction pair Jeremy and Rebecca Front?
