However, the former Office actor - who plays Dr John Watson in Sherlock - admitted that he is not a big fan of Doctor Who.
Speaking to What's On TV, Freeman said: "I don't feel as passionate about Doctor Who as Stephen does, but I've enjoyed watching it more since being a father.
"We met Matt Smith while filming Sherlock in Cardiff because the Baker Street set is next to the [Who] set. It was strange seeing Sherlock Holmes and The Doctor together. They are the perfect fictional team."
Sherlock continues this Sunday with 'The Blind Banker', airing at the slightly earlier time of 8.30pm on BBC One.