Heroes considered Geniuses amongst Geniuses - in other words they are amongst the most intelligent beings in existence and are characterized by a personality in which they will plan things to amazing lengths and always have a backup plan. A Mastermind is rarely caught off-guard and will often have other plans to fall back on should his or her original plan be foiled.

Not to be confused with the Mastermind category in Villains Wiki.

Note: If under this do not add Genius as this is a step above such and it is redundant. They are the opposite of the Dimwits category as these heroes are among the smartest characters, while a dimwit cannot make many smart decisions. Both categories are completely different and is, therefore, impossible for a character to be in both categories. It is possible for them to be incompetent if they are funny characters whose failures are played for laughs (i.e. Sheldon J. Plankton).