The Almighty Tallest are the maximum authorities on planet Irk. They are chosen by their height, since height is a really appreciated feature by Irkens.
The current Almighty Tallest are Red and Purple. They have similar personalities and physical features, with the obvious difference of clothes and eye colors. They both enjoy candies and snacks.
Only two former Tallest are known, Tallest Miyuki and Tallest Spork. They were part of the episode "The Trial", but due to the series cancellation, they never were in the cartoon.