A bounty hunter of antiquities. ~ George Lucas

I like that. The doctor with the bullwhip. ~ Steven Spielberg

Dr. Henry Walton "Indiana" Jones, Jr. is a fictional adventurer, soldier, professor of archaeology, and the main protagonist of the Indiana Jones franchise.  George Lucas created the character in homage to the action heroes of 1930s film serials. He is featured in any of the below:

Feature films

• Raiders of the Lost Ark (1981)
• Indiana Jones and the Temple of Doom (1984)
• Indiana Jones and the Last Crusade (1989)
• Indiana Jones and the Kingdom of the Crystal Skull (2008)

Television series

• The Young Indiana Jones Chronicles (1992–1993, 1995–1996, 1999)

About

• Lucas: A bounty hunter of antiquities.

Spielberg: I like that. The doctor with the bullwhip.

Lucas: It has to be unique. It’s a character. Very Americana. Square. He was born in Indiana.

Kasdan: What does she call him, Indy?

Lucas: That’s what I was thinking. Or Jones.

• George Lucas, Lawrence Kasdan and Steven Spielberg, Raiders of the Lost Ark Brainstorming Session as quoted in "Spitballing Indy", Patrick Radden Keefe, New Yorker, (March 25, 2013).