Edwin Gauss

Edwin Gauss, nicknamed Folded Man, is the last remaining bus meta-human mentioned by Harrison Wells. His powers were absorbed by Clifford DeVoe, and Edwin's body was briefly used him until DeVoe took over Ralph Dibny's body.

Transformation to meta-human
On October 10, 2017, Edwin rode a bus through Central City and when Ralph Dibney got on the bus and couldn't pay for the ride, Edwin payed it for him. During the bus ride, a portal opened, releasing Barry Allen from the Speed Force, bathing all of the bus passengers in dark matter. On gaining his powers, Edwin immediately "folded", vanishing into a pocket dimension. For that reason, no one saw him for several months afterward.

Getting found
When Edwin came out of a pocket dimension to put some mail in the post box he got confronted by The Flash, Vibe, the Elongated Man and Killer Frost who thought they were tracking a pocket dimension of the Thinker. Because he didn't expect to see them he got surprised and fell back into his pocket dimension.

Later Team Flash tracked him down to some sort of hippie commune there he got chased by Caitlin. But because he was too fast he had to be stopped by Barry. Edwin panicked but after they told him they weren't cops, he calmed down. He then asked about their "ninja buddy" which was a Samuroid sent by DeVoe. The Samuroid then stabbed Caitlin and threw her into a tree stump. Barry then quickly dismantled the Samuroid and caught Caitlin. Then he told Ralph to bring Edwin to S.T.A.R. Labs.

Attacking DeVoe's lair
At S.T.A.R. Labs Edwin agreed to staying in the pipeline for his own protection but later he got lured out by Ralph holding some Zesty Ranch. They then started talking about the first couple of times he "folded". Edwin said that the very first time he was in a white space for days. He also said that another time he tumbled down a ramp and ended up in a space agey room with blue lights and there was also a bald man in a Professor X floaty chair with tubes coming out of his noggin and a lady in a white lab coat with a hot accent. Ralph then realised that Edwin was talking about DeVoe's lair and asked Edwin if he could bring them there again to which Edwin responded with yes.

Ralph then planned to let Edwin bring him there so that he could stop DeVoe for good by killing him but then they got stopped by The Flash who fought with Ralph and knocked him out. Team Flash then rethought about Ralph's plan and then chose to let Edwin send The Flash, Vibe and Killer Frost to stop DeVoe. After Edwin sent them there, he returned to the pipeline.

After DeVoe broke into S.T.A.R. Labs he took Edwin's body and powers. After confronting The Flash, DeVoe proceeded to take Ralph's body, leaving Edwin's fate unknown afterwards.

Powers

 * Meta-human physiology: After Edwin was struck by the dark matter energy after the Flash was released from the Speed Force, his DNA was altered, enabling him to access his newfound powers.
 * Dimensional manipulation: Edwin has the ability to create portals to pocket dimensions by "folding". It is presumed that his power is automatic.

Behind the scenes

 * In the Flash comics, Edwin Gauss is an American physicist that becomes the Folded Man, a super-villain who uses a suit he built to travel between dimensions, able to become two-dimensional as well as four-dimensional. In the show, he is instead Hispanic and his powers are in his genetics, and he is not evil.
 * His powers have also changed from literally folding himself through two-dimensions and four-dimensions to entering pocket dimensions.