An investigator's helper is commonly referred to as an "investigative assistant" or "investigative aide." This role may involve supporting detectives or investigators by conducting research, collecting evidence, reviewing documents, and assisting in interviews. In some contexts, particularly in law enforcement, they may also be called "forensic assistants" or "crime scene technicians," depending on their specific duties.
A magician's helper or assistant is sometimes called a famulus.
The name of a King's helper depends on where they reign. A common name for this helper is Governor.
accomplice, helper-in-crime
a helper
Bart's dog is called Santa's Little Helper. Funny name!
santa's little helper
Shamas or helper candle
The pony horse
a customer helper
Paranormal investigators
A helper verb is also called an auxiliary verb. It determines the mood or tense of another verb in a verb tense.
there is no such thing known so far.