Zoom is far from the only villainous speedster set to terrorize Central City during this season of The Flash.

'Teen Wolf' Season 5: Top 5 Teasers For The Midseason Premiere, From Stiles' Flashback To Theo's Origins

Barry Allen (Grant Gustin) will get an unwelcome blast from the past in episode 11, one which will come in the form of the original Reverse Flash. That's right, folks, the man Eddie erased form the history books is ready for a comeback. Somehow, against all odds, Eobard Thawne is about to return.

This time, Barry will face off with the Matt Letscher version of the villain, according to Entertainment Weekly. Seen only briefly in season 1, Letscher's character will showcase the Reverse Flash as he was before he stole Earth-1 Harrison Well's (Tom Cavanagh) DNA.

'The Flash' Season 2: Episode 14 Will 'Blow Your Minds', Grant Gustin Teases Series' 'Craziest' Episode

"His impossible return to Central City puts a member of the S.T.A.R. Labs team in unexpected danger, forcing Barry to make a life-changing decision," executive producer Todd Helbing told EW.

Will the Reverse Flash be from Earth-1's future, or will he come through a breach? Fans will have to wait until "The Reverse-Flash Returns" to find out.

Catch The Flash Tuesdays at 8 p.m. ET on The CW. Click the video below to see a preview for the spring run.