Jack


 * Jack, a prisoner of the Khans in Fallout
 * Jack, a character from the NCR in Fallout 2
 * Jack, a unique Ripper in Fallout 3
 * Split Jack, a character in the Fallout 3 add-on Broken Steel
 * Smiling Jack, a friendly raider merchant in Evergreen Mills in Fallout 3
 * Jack Smith, a cannibal from Andale in Fallout 3
 * Jack, a Boomer in Fallout: New Vegas
 * Jack, a Great Khans drug dealer in Fallout: New Vegas