Grey Gargoyle (Yost Universe)

Grey Gargoyle first appears as a prisoner in the Big House, warning Whirlwind about not try to escape. Episode:The Man In The Anthill

He's among the inmates who escape when the Big House malfunctions and uses his powers to turn a SHIELD agent into stone (Episode: The Breakout)

Grey Gargoyle would later re-appear as a member of the Masters of Evil. He turns Karnilla into stone to help Enchantress and Executioner to steal the Norn Stones. When he asks for his reward, Executioner approaches him, axe in hand. The next scene shows Enchantress and Executioner returning with the other Masters, but Grey Gargoyle isn't accompanying them anymore. Enchantress says he didn't survive.