Testacles the Debug Centurion

Testacles the Debug Centurion is a "cut" non-player character that is still present in the game's files of Fallout: New Vegas.

Background
Upon being spoken to he can: alter the Courier's reputation with various factions of the Mojave Wasteland, spawn Rex, edit quest outcomes, and so on.

Appearances
Testacles the Debug Centurion was a debug tool to test Fallout: New Vegas' functions in its developement stages.

Behind the scenes

 * His name is pronounced "Teh-stah-kleehs", rather than "Teh-stah-kuuls" as some may think at first glance.
 * His name is a reference to a debug character featured in another Black Isle/Obsidian game, Planescape: Torment.
 * In Fallout 2, during the bridgekeeper encounter, one of the answers you can give when you are asked your name is "Testacles".
 * In Van Buren, there is a character named Testocles who simply berates the player, after which the player can counter using a skill above 5. This is likely used as a skill check test.