Hades

Hades is the greek god of the underworld in OMG. He is unlocked in the 14th level. He's role is very similar to a necromancer.

Description
Summons friendly ghosts from monsters he killed.

Trivia

 * He greatly resembles Grim Reaper.
 * He is similar to Kingdom Rush's Necromancer Tower as they both summons dead minions, the only difference is that Necromancers summons more than one minion at a time and Hades summons only 1.