In the series, Barry is 25 and portrayed as a smart, goofy and tardy character, who works at the Central City Police Department as a forensic chemist.

When he was younger, he witnessed the murder of his mother by the Reverse Flash, which resulted in the false imprisonment of his father for the crime.

He is a friend and frequent ally of Star City-based vigilante archer Green Arrow and Kryptonian superheroine Supergirl.

Sometime after Barry returns to Central City, he is struck in his laboratory by lightning which was affected by dark matter from the explosion of S.T.A.R.

Barry discovers Eobard's confession of Nora's murder that clears Henry of all charges, and inherited Wells's fortune and resources.

Though he is somewhat able to restore the timeline, this creates new threats, including the god-like speedster Savitar as well as Killer Frost who both have grudges against Barry.

After saving Iris and defeating Savitar, Barry takes his place in the Speed Force in order to repent for his creation of Flashpoint.

In the sixth and seventh seasons, Barry deals with various antagonists while working with new allies Chester Runk, Allegra Garcia and Nash.

Following Rosso's defeat, Barry surviving the crisis, and the multiverse's destruction and rebirth, Team Flash try to navigate the world post-crisis all while the secret organization Black Hole, and quantum engineer Eva McCulloch move forward with plans.

In the crossover "Elseworlds", Arkham Asylum doctor John Deegan rewrites reality, which results in Barry and Oliver swapping lives.

[4][5] In the crossover "Crisis on Infinite Earths", the Monitor recruits Barry, Oliver, Kara, Kate Kane / Batwoman, Sara Lance / White Canary, Ray Palmer / Atom, and several others from throughout the multiverse to stop the Anti-Monitor from destroying reality.

of Titans, when Garfield "Gar" Logan / Beast Boy from Earth-9 travels the multiverse for the first time via the Red, he encounters a yellow flash zipping by.

[7] During the second season minor changes were made to the suit, the alteration being the background color of the emblem is now white with a gold lightning symbol which is more true to the comics.

[10] The fifth season made one of the most significant changes, that is the removal of the chin strap and switching the fabric softer more body fitting look, created by Ryan Choi, in the future.

The suit in the sixth season is fairly similar to though now with gold piping along the torso and an entirely new cowl which features the return of the chinstrap as well as modified ear pieces designed to look more like the classic Hermes wings from the comics.

However, in a twist of fate Barry's mother is murdered and Iris's father steps in as his legal guardian due to her friendship with the young boy.

Barry dates Linda Park briefly in the first season, who is both friends and colleagues at the Central City Picture News with Iris West.

Their relationship slowly dies out as she suspects him to still be in love with Iris, and also due to his general tardiness stemming from fighting crime as the Flash, they eventually break up and decide that they are better off as friends.

From his prison in the Speed Force, Savitar manipulates Julian Albert into acquiring the Philosopher's Stone so Doctor Alchemy can re-empower metahumans from the Flashpoint timeline.

He's pulled out from the timeline before his demise via the Negative Speed Force alongside the Reverse-Flash, Zoom and Godspeed, and gets transported by Cobalt Blue to the present day to fight Team Flash.

"[20] Schedeen eventually warmed up to the character, however, once the "dorkiness and social awkwardness" were downplayed a bit and the emphasis was placed on "his keen scientific mind".

[21] Grant Gustin as Barry Allen has received positive reviews by both fans and critics, with The Flash being the most watched show in The CW history.

[26][27][28] Gustin's Barry Allen has been said to be the better Flash, compared to Ezra Miller who starred in the Warner Bros. Justice League.

[29] According to Nick Mangione from Geek.com, "By the time Ezra Miller made his brief cameo appearance in Batman v. Superman, we had already seen the perfect Barry Allen".

He goes on to say "More than heart, more than a perfect embodiment of the character from the comics, Grant Gustin is the one true Barry Allen because his show allows him to be.

"[30] Kain, however, opined that the show has since gone downhill and that "Miller's Barry Allen is better in almost every way than Gustin's, though that's largely because he's not weighed down by CW melodrama.