For those fans not on Twitter, I collated most of the questions and Tom's responses. If I missed any let me know.
Tom Riley @thisisTomRiley Ok. I'm here. Lets Q&A this. Tag 'em #askriley & I'll get through as many as I can. Pre-emptive strike answer. I don't know about series 3. #askriley
@StressfulG What did you have for lunch today?
@thisisTomRiley Ha! I had Haddock.
@christineLappin #askriley Shepherd & monroe have great chemistry onscreen. Are you & James Nesbit good pals off screen? #missmonroemondays
@thisisTomRiley I love him. He's a fantastic friend and a brilliant actor.
@aquamarine_jo Congratulations on Monroe – damn good job. Now. Tell us something surprising about yourself! #askriley
@thisisTomRiley I used to be able to run the 100m at almost world record speed.
@meatkinson If you weren't an actor would you see a career in anaesthetics as an alternative? #askriley am an ICU nurse
@thisisTomRiley I think I might end up killing too many people.