novels, the main character is referred to as Flynn "Fly" Taggart. For the Doom 3 novels, the Marine's name is John Kane. His past is similar to that of the protagonist in the original Doom, having been demoted after disobeying the command to save some of his fellow marines. During the Hellish invasion, Kane is forced to take command of several of the surviving marines despite his stripped ranking. He battles the demons singlehandedly or with a few other marines. He is depicted as compassionate to his fellow survivors, working to save the child Theo and to save the damned in Hell. After volunteering to enter Hell to retrieve the soul cube, Campbell is shown as very impressed by him. He and Maria start to feel romantic ties to each other. During the end of Doom 3: Maelstrom, Kane's leg is blown off and he is admired as the "man who saved Mars City". He also appeared in the point-and-click visual novel Doomed Love on Itch.io. Film Arnold Schwarzenegger, Vin Diesel and Dwayne Johnson were mooted for the role of Doomguy in the 2005 film Doom, with Karl Urban ultimately cast in the role of John "Reaper" Grimm in September 2004. Urban underwent military training for two weeks under military advisor Tom McAdams. The film's first person shooter sequence, told from Doomguy/Reaper's perspective, was completely directed by visual effects supervisor Jon Farhat and was filmed in 14 days after a planning period of three months. While the scene is one continuous shot, multiple cuts, that Farhat called "hook-ups", were made during filming, Farhat stated: "You can do it by moving a camera, and passing something, and cutting. And then rolling the camera again on a subsequent date." Other hook-up styles were used by using a green screen or blue screen when a door opens or jump cutting by whipping an object. Doomguy/Reaper's gun was only used on-screen when it was needed due to its size affecting the aspect ratio. For the 2019 film Doom: Annihilation director Tony Giglio created the character of gender-swapped Doomguy Joan Dark after taking inspiration from The Terminator and Aliens, feeling that a female protagonist would be more effective in a sci-fi action film. Joan was named after Joan of Arc. Four suits were produced for the Imps, with one designed for leaping. Inspiration was drawn from Doomguy's depiction in the first three Doom games, as