During its massively successful and ongoing run since 2005, ''THE iDOLM@STER'' franchise has generated a roster of [[LoadsAndLoadsOfCharacters 200+ characters]] that regularly expands. Due to this continuous growth, the original Character Sheet has been divided into sections dedicated to each flagship entry of the franchise:
* '''[[Characters/TheIdolmasterAllstars THE iDOLM@STER]]''': Characters originating from the foundation and ''2nd Vision'' titles. This includes but not limited to: ''iDOLM@STER'', ''iDOLM@STER 2'', ''Dearly Stars'', and anime shows based directly off these properties. They are collectively considered the core cast of ''iM@S''.
* '''[[Characters/TheIdolmasterCinderellaGirls THE iDOLM@STER: Cinderella Girls]]''': Characters originating from the ''Cinderella Girls'' franchise. Originally a mobile device card game, it contains the largest ''iM@S'' cast: over 180 exclusive characters and growing.
* '''[[Characters/TheIdolmasterMillionLive THE iDOLM@STER: Million Live!]]''': Characters originating from the ''Million Live!'' franchise, including the original mobile game and ''Theater Days''. It features a total of 39 exclusive idols.
* '''[[Characters/TheIdolmasterPuchimasu Puchim@s! Petit iDOLM@STER]]''': Characters originating from the ''Puchim@s!'' franchise. A comedic manga later adapted into an anime miniseries with DramaCD support, it contains SuperDeformed personalities of the core ''iM@S'' cast.
* '''[[Characters/TheIdolmasterSideM THE iDOLM@STER SideM]]''': Characters originating from the ''[=SideM=]'' franchise. An unexpected SpearCounterpart series and mobile device game. It features 42 new male idols, as well as the Jupiter trio from the foundation games and Ryo Akizuki from ''Dearly Stars''.
* '''[[Characters/TheIdolmasterKR The iDOLM@STER.KR]]''': Characters originating from the Live-Action Japanese-Korean TV drama.
* '''[[Characters/TheIdolmasterShinyColors THE iDOLM@STER: Shiny Colors]]''': Characters originating from the ''Shiny Colors'' franchise. Launched as a HTML5-based browser game, it currently features 16 exclusive idols.
All sheets are undergoing construction, expansion, or renovation.