Grodd

Grodd is a gorilla that was tested on in S.T.A.R. Labs.

Test subject
Some time early on, Grodd was planned to be tested on by Harrison Wells and Wade Eiling though Wells shut down the program but had other plans for him.

After the S.T.A.R. Labs accident
After the particle accelerator accident, Grodd's cage was seen to have been destroyed and Grodd likely escaped.