Wally West

Wallace "Wally" West is the son of Joe and the late Francine West, and the younger brother of Iris West. He is a champion drag-racer under the alias "Taillights".

Biography
Francine West gave birth to Wally 8 months after leaving her family. Francine and Wally lived in Keystone City, where Wally started participating in street races and gained a reputation as a winner. Other racers stopped wanting to face him, so he started racing in Central City in order to pay for his mother's medical bills due to her being sick.

Visiting his father and sister
During a Christmas party in 2015, Wally stopped by to visit Joe and Iris. He realized they had company and apologized for the timing but was invited into their home.

Iris and Joe showed Wally around the Central City Police Department earlier before their plans to have dinner that night, where it became evident that Wally held bitter resentment towards Joe for not being in his life. However, Wally stood Joe up and was later found by Joe participating in a street race, which he won. Wally told him that he has been doing street races in order to pay for his mother's medical bills, as he had had to be the man of his household all of his life due to Joe's absence. Joe offered to dip in to his bank account to help Wally but he angrily rebuffed the offer. Later that day, he visited Joe and reassured him that an apology wasn't coming, before letting him know he was returning to Keystone City. Joe apologized for trying to push the "father-son" thing so hard, before they sat down to a meal of Chinese food.

When Francine's state worsened and she was about to die, she told Iris she would like Wally to visit her so she could see the whole family together. Iris went to see Wally to talk about her and he said he was angry because his mother never told him he had a father and a sister. Iris mentioned she never had the opportunity to say goodbye to her fiancé before he died and told Wally he should go see his mother while he still could. Wally decided to follow her advice and asked Iris to go see Francine with him.

Francine died soon after and Wally grew closer to Joe and Iris. Iris started to worry about the dangers of Wally's street races and complained that Joe was acting more like a "buddy" than like a father to Wally, though Joe explained that he wanted to give Wally some space and not be strict with him to avoid jeopardizing their relationship. Iris tried to talk some sense into Wally and even threatened to publish an article about street racing. She and Joe were at one of the races when a metahuman able to merge with asphalt attacked one of the racers. Wally was saved by The Flash, but Iris got injured by a glass shard and had to be taken to the hospital. Wally visited her there and Joe had a serious conversation with him, saying they were worried about him because they were his family and that he should have treated Wally as a son instead of as a friend. Wally decided to stay with Iris at the hospital and told her he liked street racing because it reminded him of the times when his mother would take him for a drive, which is why he did not want to stop racing.

Joe attempted to help Wally and Barry bond by having him help Wally on a technical project to enter college. Wally became annoyed with Barry's revisions to his project and after being questioned by Barry if he had a problem with him, Wally revealed his jealousy over Barry's perfect life, getting to be raised up in Joe's home and being bragged about so much by Iris and Joe but they are interrupted by King Shark ripping the roof of the West home open in search of The Flash. When Barry stumbles back down the stairs after fighting King Shark and to cover his tracks as The Flash, Wally calls him a coward for hiding during the attack and leaves when Joe stops the altercation. While at CC Jitters, Joe tells Wally about Barry's mother being murdered when he was eleven and his father being wrongfully accused of her murder and that he had given Barry all the love and care he deserved and that while Barry is flawed, the reason they brag on him so much is because it could have been worse and that he is loved just as much as Wally and is also his son too.

Trivia

 * His birth name is Wallace, which is what Joe and Francine were going to name Iris if she was a boy.

Behind the scenes

 * In the DC multiverse Wally West is the third person to take up the superhero mantle of The Flash, after Barry Allen. He was also previously the superhero Kid Flash.
 * In the DC comics, Wally and Barry are the fastest out of all the Flashes.
 * In the DC comics, Wally is Caucasian, however that has changed since the New 52.
 * In the DC comics, Wally is Iris' nephew, however, in the Arrowverse, he is Iris' younger brother.
 * Wally's rebellious nature is based off his New 52 counterpart.