Drew Carey was the first guest host on September 20, 2004, and again the following night. Subsequent guest hosts included: Jason Alexander, Jeff Altman, Tom Arnold, Michael Ian Black, Tom Caltabiano, Adam Carolla, Tom Dreesen, David Duchovny, Damien Fahey, Craig Ferguson, Jim Gaffigan, Ana Gasteyer, David Alan Grier, D. L. Hughley, Lisa Joyner, Donal Logue, Rosie Perez, Ahmad Rashad, Jim Rome, Aisha Tyler, and The Late Late Show head writer Michael "Gibby" Gibbons culminating in four finalists being involved for week long final tryouts: Craig Ferguson, D. L. Hughley, Damien Fahey, and Michael Ian Black. It was announced on December 7, 2004, that Ferguson, a Scottish comedian best known from his role as Mr. Wick on The Drew Carey Show, was to become Kilborn's permanent replacement. David Letterman later said he made the selection based on the recommendation of Peter Lassally. Following the conclusion of the on-air auditions on December 3, 2004, guest hosts continued to fill out the roster until the end of the year and included: Jason Alexander, Donal Logue, David Alan Grier, Aisha Tyler, Drew Carey, Sara Rue, John Witherspoon, Joe Buck, Susan Sarandon, Don Cheadle, Daryl Mitchell, Bob Saget, Jim Rome, Ana Gasteyer, Damien Fahey and D.L. Hughley. Craig Ferguson (2005–2014) Under Craig Ferguson's tenure as host, the show started with a cold open, followed by opening credits and a commercial break. A loose comic monologue then followed, consistently including a greeting ("Welcome to Los Angeles, California, welcome to the Late Late Show, I am your host, TV's Craig Ferguson") and the proclamation that "It's a great day for America, everybody!". From 2010 the monologue also included banter with Geoff Peterson, his "robot skeleton sidekick", voiced and controlled by Josh Robert Thompson. This animatronic was constructed by the MythBusters' Grant Imahara but went through many revisions, the most important was the regular live control and voicing by Thompson. This changed the dynamic of the show as Ferguson had a recurring 'sidekick' to banter with. After another commercial break, the banter continued with Ferguson sitting behind a desk. He usually read and responded to viewer e-mail and (since February 2010) Twitter messages for random responses to viewer questions. During segments Ferguson occasionally received phone calls (voiced by Thompson) from a variety of characters, including celebrities, the 'very shy' band (Alfredo Sauce and the Shy Fellas) allegedly hiding behind the set's curtain, room service, a duplicate Geoff, and