U.S. actress Melody Thomas Scott is to guest star on the sitcom "The Crazy Ones" in mid-April, TVGuide.com reported. Best known for playing recovering alcoholic Nikki Newman on "The Young and the Restless," she will play a librarian who drinks too much on "The Crazy Ones," which stars Robin Williams and Sarah Michelle Gellar. "It came completely out of the blue," Thomas Scott told TVGuide.com of the guest spot. "I was originally called in for another role on the show and was told by the producers that I was too young, which was fabulous! But they thought Robin and I would play off each other well, so they created a role for me in a different episode. It's a great character and not at all glamorous like Nikki. This poor girl is really trying to be sexy but she's just not cutting it -- and she has no qualms about pulling out her flask during library hours."