According to The Hollywood Reporter, the Flash TV show is adding Linda Park as a recurring role, played by Malese Jow (The Vampire Diaries).

The character is described as a quick-witted reporter for the Central City Picture News. She befriends Iris (Candice Patton) while at work and helps her navigate the fast-paced world of journalism. When she meets Barry Allen (Grant Gustin) at a local bar, the two hit it off. The character will first appear in episode 112.

As others have noted, the character made a brief appearance in the pilot episode on news coverage of the STAR labs particle accelerator, played by a different actress. She would hardly be the first character to be recast or retooled after a show goes from pilot to series.