Unsung hero 

Someone who does a great job yet receives little or no recognition for that. an unsung hero usually refrains from claiming too much in return for his/her efforts.

"Mikel Arteta was considered to be Arsenal FC's unsung hero this season."

Unsung hero by Behradeth June 5, 2013

Unsung hero 

An unsung hero is a person who commits an extraordinary act but does not receive recognition or proper respect. However, as the late George Carlin put it, "As soon as someone is identified as an unsung hero, they no longer are."

Pizza delivery people are the unsung heroes of the 21st century

Unsung hero by The Notorious J.O.G. January 26, 2017

unsung hero 

mac

mac is an unsung hero and carries marching band

unsung hero by gingystingy August 15, 2021

Unsung hero 

usually in a movie, the unsung hero has major importance in the story by doing something major, but then is brushed off as a side character.

an example would be Hobie Brown in across the spider verse or the hacker in the isle of dogs
(these are both the unsung hero of the movie )

Unsung hero by Ronald.j chanefeild October 5, 2023