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. Launched as a social media game, it features 37 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 37 new male idols, as well as the Jupiter trio from the foundation games and Ryo Akizuki from ''Dearly Stars''.

All sheets are undergoing construction, expansion, or renovation.