‘Family Guy’ Spinoff ‘Stewie’ Adds Six to Cast, Including Kenan Thompson and Vanessa Bayer

The upcoming “Family Guy” spinoff focused on Stewie Griffin is building out its voice cast. Variety has confirmed that, in addition to Seth MacFarlane as Stewie, “Family Guy” mainstay Mike Henry will also lend his voice to the show, as will Kenan Thompson, Vanessa Bayer, Melissa O’Neil, Aaron Lee, and Jessica Lowe.