EXCLUSIVE: Busy Philipps (Girls5eva, Cougar Town), Sean Kaufman (The Summer I Turned Pretty, For All Mankind), and Alfredo Narcisco (The Summer I Turned Pretty, Manifest) have been set as guest stars in NBC's new comedy Stumble, from Jeff and Liz Astrof. Stumble, which has a mockumentary style, will follow Happy's Place on Fridays as part of two comedy blocks [...]