The main characters in the comic strip "Mutt and Jeff" are Augustus Mutt and Jeff, who are two bumbling friends involved in various misadventures. Mutt is the taller, more scheming character, while Jeff is shorter and more naïve. Their contrasting personalities often lead to humorous situations in the strip.

The cast of Mutt and Jeff and the Newsboys - 1911 includes: Gus Alexander as Jeff

The cast of Mutt and Jeff and the Blackhand - 1911 includes: Gus Alexander as Jeff

The cast of Mutt and Jeff as Reporters - 1911 includes: Gus Alexander as Jeff

Mutt and Jeff