Carter Hall (Earth-90)

"Okay Sherry! There's a couple of things! If Dr. Carter Hall calls can you tell him that I'm gonna be in the gym splicing lab."

- Tina McGee believing to talk to Sherry

Dr. Carter Hall was a doctor and an acquaintance of Tina McGee.

S.T.A.R. Labs Doctor
In 1990, Dr. Tina McGee called her assistant Sherry to warn Dr. Cater Hall about her location only to find out that an intern took her place.