Ralph Dibny (Arrowverse Earth-One)

Ralph Dibny is an ex-police detective of the Central City Police Department and a private investigator. He is the son of Debbie Dibny and an unnamed man, the grandson of an unnamed woman, and the close friend of Barry Allen, Cisco Ramon, Iris West-Allen, and Caitlin Snow.

Pre-Flashpoint
In the pre-Flashpoint timeline, he was presumed to be one of the seventeen people who lost his life during the S.T.A.R. Labs particle accelerator's explosion.

Post-Flashpoint
However, Ralph reappeared alive in the post-Flashpoint timeline, gaining his powers due to exposure to dark matter from the Speed Force. Using these superpowers, he began acting as a meta-human vigilante and the superhero, initially referred to by the media as the Stretchy Man, but shortly thereafter being named the Elongated Man bythe same individuals.

Biography
On October 10, 2017, Ralph was on the bus that was exposed to dark matter particles resulting from Barry Allen's return from the Speed Force. Ralph did not exhibit his powers immediately after that, but took a few weeks. He was visited by Barry and Joe West regarding if he had been on the bus that day, but gave them no information since Barry still has Ralph's ire. Soon after Barry and Joe left, two thugs came to Ralph's office. They hung him by his legs off the top of an establishment to intimidate him, inadvertently causing Ralph's powers of elasticity to manifest and allowing him to descend safely from that height, albeit with his lower limbs now rubbery and exceedingly stretched beyond the limits of their original design. He was later brought into S.T.A.R. Labs where Team Flash there did preliminary tests to his new attributes, all of which greatly disturbed Ralph who just wished to return to normal, but could not as he was still new to his meta-human abilities, preventing him from deliberately returning his outstretched extremities back to their default state. A serum administered by Caitlin soon gave Ralph a measure of control, but was told that the concoction had not fully reversed his new condition instead rather only made it more manageable, which Ralph quickly realizes when he successfully lost weight upon visualizing it - finally letting him see (and beginning to appreciate) the perks of his meta-human condition and most-recent development. Ralph later met with the mayor, recanting his blackmail and returning the photos he took. He was shot by Bellows, only for both of them to find that his powers made him bulletproof. When the Flash came to save him and apprehend Bellows, Breacher appeared to attack him, as he mistook Ralph for one of the elastic invaders that ravaged his planet, so the Flash stopped him as well. While the mayor escaped with Joe on a helicopter, Barry revealed himself to Ralph and implored him to use his powers for good, so Ralph stretched an arm to reach the chopper from afar, allowing Barry to run up and save Joe. In the end, the two reconciled. Barry offered Ralph a place on Team Flash, which Ralph considered. When Barry, out of interest, asked him about his motive for investigating Bellows, Ralph revealed that a client requested him to investigate the mayor over the phone, going by the last name DeVoe.

Life of a Superhero
Barry began to train Dibny as a superhero, though it didn't go without some good-natured, back-and-forth banter and bickering between the two of them. In their civilian guises, they eventually bump into an armed robber (who had the unfortunate mishap of attempting the same on Barry around three years ago) after buying some coffee. Deeming the mugger and the gun he was brandishing towards them as no particular threat, the two metahumans turned their backs and plotted on how to deal with the robber; this leads to a very comical situation where, tired of being ignored, the mugger tried to prove his point by using his gun on Ralph — only for his elasticity to cause two bullets from the mugger's gun to ricochet back into his leg and backside. Subsequently, Dibny was taken to Sharon Finkel, a hypnotist, to recover his lost memories help identify the other bus metas. The best Dibny could do was recall a woman with a black bison on the back of her jacket. Soon enough, the two superheroes confront Mina Chaytan, whom Barry allowed escaping while he saved the man she was attacking from a knight statue brought to life by Mina's powers. Dibny questioned why Barry would allow the criminal to escape, as it should be well within Barry's abilities to simultaneously save the innocent and catch the perpetrator (and not necessarily in that order) though Barry argued saving the lives of other people comes before catching the bad guy. Pursuing Mina once more, Dibny chose to prevent her from leaving by holding her car in place with his arm while Barry was fighting a caveman statue. This also caused Dibny to neglect falling debris in the ongoing chaos as a utility pole fell on a young girl. Dibny is wracked with guilt that his actions could have killed a child and admits he's never had to care for other people before since being a private investigator is so simple. Barry promises to be there for Dibny as a friend and that the job is always going to have its hard days. At a museum chasing down Mina, Dibny redeemed himself by choosing to save a night guard from a T-Rex statue over catching Mina, and paid the cheap price of becoming the said extinct dinosaur's chew toy, only spared because of Ralph's rubber-like physiology nullifying the skeleton's biting force, keeping its teeth from biting and actually cutting through him. Ralph then uses his own body to wrap around the skeleton cadaver's maw, keeping it from harming anyone or anything else in the museum. Later that day after Mina's re-capture, Dibny visited the young girl who had been injured in the accident and cheered her up by making balloon animals with his hands and feet.

After Barry was sentenced to prison, Ralph took over as the hero of Central City as Elongated Man. After a few weeks of fighting meta-humans such as Matthew Kim, Jaco Birch, and some others, Ralph eventually found himself with a desire to kill DeVoe when he discovered the new bus meta, Edwin Gauss

DeVoe Fight
When Harry created the Sonic Scepter which can incapacitate someone with one strike and kill them with another, he planned on using this weapon against DeVoe. When he and Edwin Gauss A.K.A. The Folded Man attempted to go into DeVoe's dimension using Folded Man's abilities, he was stopped by Barry. After a long talk with Barry, it was revealed that he wanted to stop and kill DeVoe for Team Flash. DeVoe managed to get the upper hand and was able to teleport himself to S.T.A.R. Labs and trap Caitlin (while she was in her Killer Frost persona), Barry, and Cisco. When all three of them escaped, DeVoe caught up to Ralph and made him fight the dinosaur skeleton. After defeating the dinosaur, Ralph found all of the recent metas laying on the floor dead with DeVoe now in Edwin Gauss's body. They then teleport to the Speed Lab where DeVoe caused Ralph to have an aneurysm. Ralph took the Scepter out of his chest and used it against DeVoe, then raised his hand above DeVoe one more time. When Barry went into the Speed Lab, he saw a "defeated" DeVoe and Ralph smiling. DeVoe then broke out of his cuffs and started implanting his consciousness into Ralph. When Barry implored Ralph to resist DeVoe and swore to save him, Dibny replied that Barry already had just before DeVoe finally took over his body.

DeVoe‘s Subconscious
In a last-ditch attempt to stop DeVoe's Enlightenment, Barry, with the aid of Marlize and the Thinking Chair, ventured into DeVoe's mind, where he encountered Ralph's surviving consciousness. When asked how Ralph even survived, DeVoe appeared, explaining that Ralph is alive because he allowed it. Escaping the Thinker further into the mindscape, Barry explained his objective to find the good part of DeVoe that existed before the Thinker. Recalling that DeVoe was a history professor, Ralph and Barry arrive at a recreation of DeVoe's classroom, only to find the personification of the good DeVoe dead. Falling into despair again, Ralph urged Barry to leave and save his family. Barry told Ralph that he was part of that family too and refused to abandon him. He then got the idea for Ralph to regain control of his body to purge the Thinker by entering what Ralph described as the "hellmouth" to the nexus of his brain. Unfortunately, DeVoe created clones of himself to stop them. Shapeshifting his mindform into the Elongated Man, Ralph joined Barry in fighting DeVoe but their foe used his telepathy to anticipate their attacks. So Ralph told Barry to think of something else while attacking; he did so by shouting out different shrimp entrees. Ralph soon hung onto Barry like a cape as they ran for the portal and returned to reality. Ralph then took back his body and seemingly purged DeVoe. After returning to S.T.A.R. Labs, they barely had time to relax before it was revealed that DeVoe transferred his consciousness to his chair to restart the Enlightenment, but Marlize pulled out the power source, putting an end to the Thinker. Unfortunately, this triggered a literal dead man's switch as one of DeVoe's satellites began falling towards Central City. Getting back into the Elongated Man suit, Ralph helped Cisco protect civilians while Barry destroyed the satellite. After Barry and another speedster destroyed the satellite, he applauded Barry near Cisco and Captain Singh.

Suprise Guest
As Team Flash celebrated Jenna West's birth, they are suddenly greeted by the same girl Ralph and Cisco met at Jitters, who identified herself as Barry and Iris' daughter Nora and admitted she did something terrible.

Goldface
Ralph sat by Barry's side as Caitlin tended to Barry's wounds from the fight earlier, and Barry reminded a distraught Ralph that they'd still had a win by taking down a powerful meta without their powers, which would help them keep fighting even if Cicada's dagger dampened them. They suddenly got an anonymous call from Iris, who had sneaked into Orlin's house in search of a story for her newspaper. Back in their meta-human egos, the three joined Iris at Dwyer's abandoned house, and she revealed that she knew Cicada's weakness.