You may recognize both of their gorgeous faces from their other hit shows. Lily stars on Downtown Abbey as Lady Rose MacClare, while Richard was a regular on Game of Thrones before his character was killed off. Cinderella also stars other A-listers such as Cate Blanchett and Helena Bonham Carter.
Be sure to tune in live on Monday at 11 am ET and tweet me your questions to ask using the hashtag #AOLBuild. What do you want to know from Lily and Richard?