“The Flash” Season 4 is reportedly introducing DC characters the Elongated Man and the Mechanic.

According to character breakdowns obtained by That Hashtag Show, the CW series is looking for a Ryan Reynolds or Chris Pratt type in his mid to late 30s to play the role of the Elongated Man, and a 30 to 40-year-old female to portray the Mechanic.

As his name suggests, the Elongated Man, aka Ralph Dibny, can stretch his limbs and body to superhuman lengths and sizes. Although he is able to change the shape of his body with ease, he is having a difficult time changing his ways. The successful actor who will be cast in the role will most likely be a comedic relief in Season 4. He will be a major recurring guest star and could come back in Season 5.

READ: Candice Patton spotted filming with a mystery character on the set of “The Flash” Season 4

The recurring guest role of the Mechanic, on the other hand, is described as an extremely intelligent engineer who is tasked in designing devices for Clifford DeVoe. She’s Devoe’s right hand who supports Devoe no matter the consequences are.

As sources told TVLine last month, DeVoe, aka the Thinker, is Season 4’s big bad. DeVoe’s arrival in Central City was first teased in Season 3, episode 18, in which Abra Kadabra (David Dastmalchian), an Earth-19 technologically-enhanced villain from the 64th century, talked about The Flash’s (Grant Gustin) most dangerous foes, mentioning Eobard Thawne (Tom Cavanagh/Matt Letscher), Zoom (Teddy Sears), Savitar (also played by Gustin) and DeVoe.

In the Season 3 finale, Savitar also mentioned DeVoe’s name while roaming around S.T.A.R. Labs’ interiors. “This is where we came up with the cerebral inhibitor… to use against DeVoe,” he said moments before the final showdown between him and Team Flash. When Barry asked who DeVoe is, Savitar shrugged before saying, “You haven’t gotten there yet.”

DeVoe is one of the earliest villains of the Flash in the comics. Created by Gardner Fox and Everett E. Hibbard in September 1943, DeVoe faced off against three generations of Flashes before his ultimate demise in “The Flash #134” in 1998.

“The Flash” Season 4 will premiere on Tuesday, Oct 10 at 8 p.m. EDT on The CW.