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Who Is Harbinger Mass Effect? [Solved]

Harbinger is a Reaper who resides in dark space with the rest of the Reaper fleet. It is directly responsible for the Collectors’ operations in 2185, frequently possessing individual Collectors to fight battles personally.

Mass Effect Trilogy: Harbinger All Scenes Complete(ME2, ME3)

Mass Effect

Mass Effect - Conversation With Sovereign

While on Virmire, Shepard speaks with the reaper named Sovereign. (PC version)

Mass Effect 2 Arrival DLC - Conversation with the harbinger.

Spoilers. Also, ASSUMING DIRECT CONTROL.