Cowboy

The American Cowboy was a figure in Human history. Often reflected in films and literature as a "hero" character. Often associated with "shoot from the hip and hope for the best" mentality (Cowboy diplomacy).

James T. Kirk often considered himself a cowboy, riding in to save the day. 

Mackenzie Calhoun was called the embodiment of cowboy diplomacy. (NF novels: House of Cards, Into the Void)