Charles Calvin, also referred to as Charlie by General Hubert Galeforce, is the deuteragonist of the Henry Stickmin series. A self-christened bold action man, he is an experienced veteran helicopter pilot who works for the Government, and one of the youngest. Although he is an experienced pilot, Charles has a history of humorously failing to assist Henry Stickmin, most famously when he crashes his helicopter in two fails. Charles appears as the deuteragonist of Infiltrating the Airship and Completing the Mission, and the tritagonist of Fleeing the Complex. Depending on Henry's choices, Charles can become one of Henry's best friends, a neutral ally, or a minor antagonist. In routes where he and Henry are allies, Charles supports Henry from a safe distance in his helicopter while the latter risks his life infiltrating enemy territory, providing intel on the layout, hacking, transportation, "cover fire" and gadgets that Henry can use. Charles is a fan favourite character and is one of the most popular characters in the series, due to his amiable personality and being enthusiastic about crashing his vehicles into things. He also seems to enjoy singing, and is also shown to be loyal to Galeforce. He is voiced by PuffballsUnited, the creator of the series. His name was originally going to be Charlie but Puffballs accidentally changed it to Charles, which was eventually left as is. Despite this Hubert Galeforce calls Charles by the name Charlie, as a nickname instead.