Who is the Tall blond comedian actress on two and a half men?

You're likely thinking of Amber Tamblyn, who played the role of Jenny Harper on the CBS sitcom *Two and a Half Men*. While not a "comedian" in the traditional sense, Tamblyn is a talented actress known for her comedic timing. She's also known for her roles in films like *The Sisterhood of the Traveling Pants* and *Joan of Arcadia*.

However, it's worth noting that Tamblyn isn't a "tall blond" in the conventional sense. She's known for her dark hair and average height.