Television News Chris Klein joining 'The Flash' cast for Season 5 07/24/2018 American Pie and Election alum Chris Klein is joining the cast of The Flash for Season 5, which is scheduled to premiere Oct. 9 on The CW. Read More RELATED NEWS From Tokyo to Las Vegas: Taylor Swift's flight to Super Bowl LVIII'Chucky' Season 3 trailer released by USA Network and Syfy'Quantum Leap' Season 2 visits L.A. riots, Salem Witch Trials, and more TAGS: Jessica Parker Kennedy Grant Gustin Chris Klein Candice Patton The Flash The Flash American Pie Election