Caitlin Snow

"My once promising career in bio-engineering is now over, my boss is in a wheelchair for life. The explosion that put you in a coma also killed my fiancé, so this blank expression feels like the way to go."

- Caitlin Snow to Barry Allen Caitlin Snow is a bio-engineer at S.T.A.R. Labs. She was working during the particle accelerator disaster.

Biography
Following Barry Allen's accident, causing him to slip in to a coma, Caitlin, along with Cisco, met Felicity Smoak during one of her visits to see Barry.

Time in Starling City
A little while later, Caitlin and Cisco were asked to pack up a S.T.A.R. Labs warehouse in Starling City, following the massive explosion that occurred in Central City. The two were doing an inventory count, discussing the particle accelerator's explosion, when they heard movement in the warehouse. They went to investigate, only to find a security guard standing there. Cisco assured him that they were almost done, though he just stared them down, creeping him out. Before the man could reply, he spat blood out and dropped to the ground, with Deathstroke ready behind him. The two made a run for it, managing to incapacitate Deathstroke momentarily with an old energy gun made by Arthur Light. They later reported the incident. Sometime after, they met Felicity Smoak and John Diggle at the hospital. Felicity asked about Barry's condition, and Caitlin told her how it was still the same. Cisco quickly blurted out that "Iris" had been visiting him a lot. When Felicity asked who Iris was, Cisco struggled to explain their relationship, causing Felicity to walk off distressed that "Barry's in a coma, he's already moved on". A little while later, Felicity met the two of them in a lab, with a vial of Mirakuru, telling them that she needed their help and that it would be their little secret.

Working with The Flash
When Barry woke up from his coma, he was met by Caitlin, Cisco and Harrison Wells. They explained what had happened, along with testing how fast he could run.

After a run-in with a strongman at the Central City National Bank, Barry arrived back at S.T.A.R. Labs with a wrongly-healed ankle, after having previously broken it. They decided to re-break it, and Caitlin suggested to run extra tests to make sure that there was no further damage. Following that, Caitlin and Cisco tagged along with Barry to grab some DNA samples from the crime scene at which the strongman had been. While analysing the sample, they helped Barry find a group of chimpanzees that had escaped from Central City Zoo. As he locked them up, they revealed that the DNA sample was that of Joey Rose, a former strongman at the Central City Circus. They delved deeper in to the closed circus, discovering that its owner had escaped from Belle Reve and killed several people.

Season 1
In ,

The Flash: Season Zero

 * "The Strongman Cometh"
 * "Who Let the Chimps Out?"
 * "A Goodnight Hiss"

Behind the scenes

 * Caitlin Snow is better known from DC Comics as the fourth iteration of the super-villain known as Killer Frost.