The Super Hero Squad Show (2009)
S1E4 Hulk Talk Smack!
In the midst of a wild confrontation with Klaw and Screaming Mimi, a fractal's otherworldly energy transforms the Hulk into the Gray Hulk.
In the midst of a wild confrontation with Klaw and Screaming Mimi, a fractal's otherworldly energy transforms the Hulk into the Gray Hulk.