Mr. Big tormented Carrie through six seasons under the protection of a false moniker, and that’s originally how producers intended things to end. Mr. Big was Mr. Big. In an interview with Entertainment Weekly, executive producer Michael Patrick King explained that he wanted to give Carrie a happy ending with Mr. Big without ever identifying him, but some spirit possessed him at the last second. A Name From The Muse! “In the last episode, in the last moment, I realized [I had] to say Mr.