Protector

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A protector is a headmate whose role is to protect other members of the system from external harm, traumatic memories, harmful members of the system, or other threats.

Related Terms
Any system can have a protector, traumagenic or otherwise.

There's a large amount of subtypes too, including but not limited to: eraser, amnesian protector, avenger, janusian, warden, and swordsperson.

Protectors may be grouped into internal and external, depending on where their focus is directed.

Persecutor and malicitor are headmates that could cause harm to the system, which a protector may be protecting against.

Protectors can also be mixed with other role types, including the above.