<Li> Emily Bett Rickards as Felicity Smoak </Li> <Li> Anne Dudek as Tracy Brand </Li> <P> The series was renewed for a fourth season on January 8, 2017, earlier than usual for the series . Executive producer Andrew Kreisberg said on this, "The great thing about our dear friends at The CW and Mark Pedowitz picking the shows up as early as they did has allowed us to start building the schedules for next season ." In May 2017, it was announced that Aaron Helbing would not return as an executive producer for season four, with only Greg Berlanti, Andrew Kreisberg, Sarah Schechter, and Todd Helbing returning from previous seasons . </P> <P> In March 2017, Kreisberg confirmed that the main villain for the fourth season would not be a speedster, like the previous three seasons . Executive producers Aaron and Todd Helbing also mentioned that there would be less time travel in the season, with Aaron saying, "We like playing with the timelines and the different time periods and future and past . For now, I think we're going to focus on the present ." In June 2017, Clifford DeVoe / The Thinker was reported to be the main antagonist of the season . He was first hinted in the third season episode "Abra Kadabra" when the titular villain mentions him among the Flash's greatest enemies, and again in the season finale "Finish Line" when Savitar mentions facing DeVoe but states that the Flash has not dealt with him yet . At the series' San Diego Comic - Con panel, the speculation was confirmed, with Todd Helbing saying, "With three Speedsters in a row, this year it's the fastest man alive against the fastest mind alive ." He added that the writers were "making a conscious effort this year to get the fun quotient back up". </P>

Is there going to be another flash season 4