This week Rob is joined by actor and comedian Tamsin Greig. They talk about meeting for the first time on the set of Black Books, the differences between working with scriptwriters and being given the freedom to improvise, and how Tamsin will always stick to her acting roots rather than moving to presenting. Tamsin also tells Rob all about finding herself in a West End musical having never sung before, and they also discuss their shared experience of being rejected by RADA!