Dr. Brynn Cole is an ex-Cerberus scientist who studied the technology left behind by the Collectors. She is the leader of an enclave of Cerberus defectors on Gellix. Prior to her work on the Collectors, Dr. Cole worked in physics. It was a "researcher's paradise" according to her and she had access to cutting edge technology. Her work on Collectors involved dissecting Reaper to Collector communication and she started working on a practical human implant. However she found out that her colleagues who had finished constructing their share of the project were disappearing without a trace.