Superman Through the Ages! Forum

There have been several occasions that hint that Superman may be immune to hypnotism and mental domination. He is described as having "Super-Strong Willpower" and it may be that Superman's intellect is too advanced to fall under mind control easily.

If anything, it's probably much HARDER to place Superman under mental domination than normal.

The one incidence that comes to mind right away is "Revolt of the Girl Legionnaires" where Queen Azura of Femnaz states that Supergirl could only be hypnotized by Superboy's voice, which they had on tape and rearranged the order of words to give male-hating commands. None of the other female Legionnaires had to be hypnotized this way, even Saturn Girl, who herself has a high-degree of resistance to domination (she was able to shrug off Saturn Queen's Super-Hypnotism and the girl domination powers of Evilo's agent Apollo).

In JUSTICE LEAGUE OF AMERICA #16 (1962) Superman realizes that the music that is compelling him to dance must be based on magic somehow, because only magic could affect him thus. This is an element of a lot of stories like this, where they feel the need to explain why Superman can be hypnotized with something like "oh, it's based on magic" or "my Hypno-Coin has a red sun filter" or whatever.

The truth is, they haven't really been consistent about this. There have been occasions where Superman has been immune to mental domination, and there have been occasions where Superman has been mentally dominated (the best example I can think of off the top of my head is the Controller holding Superboy in place with "Super-Mental Force" during the "Ghost of Ferro Lad" story).