Scientist refers to people with a background in research who may or may not be a danger to the main character and their squad.
- Scientist - human scientists that can be encountered in Mass Effect and/or Mass Effect 2
- Scientist (asari) - an asari scientist assisting Doctor Droyas on Virmire in Mass Effect
- Asari Scientist - Liara T'Soni's class power in Mass Effect and Mass Effect 2
- Scientist (kett) - kett scientists aboard the Verakan in Mass Effect: Andromeda