Almighty Tallest: Red and Purple are both the leaders of the Irken race. The Irken Empire has a hierarchal class structure, where shorter individuals are both figuratively and literally looked down upon. The tallest Irken born in a specific generation takes command of the Empire as "the Tallest", but since Red and Purple, the two current Tallest, are exactly the same height, they share equal (and high-supreme) power. They are not related, as it sometimes seems, which is proved in the unaired episode "The Trial." They often show an obssesion with snackfood and ridiculing Zim.
Nicktoons: Globs of DoomEdit
The Almighty Tallest appears as a boss on the DS-version of Nicktoons: Globs of Doom. They were infected by the orange goo and went insane.
Nicktoons: Toons WarsEdit
The Almighty Tallest first only appeared as a trophy in Nicktoons: Toons Wars. But when Gaz was deleted as boss and was made a playable character the Almighty Tallest took over the role of Gaz and became a boss.