Despite his best efforts, Metamorpho was bested when Plastic Man broke in and freed his son, as well as every other inmate, destroying the prison and seemingly killing Metamorpho.
- 3 Appearances of Rex Mason (Injustice)
- 1 Images featuring Rex Mason (Injustice)
- Quotations by or about Rex Mason (Injustice)
- Character Gallery: Rex Mason (Injustice)
|Justice League member|
This character is or was a member of the Justice League of America, or the Justice League in any of its various incarnations, sworn by a duty to act as guardians of America and the world by using their skills and/or superpowers to protect Earth from both interstellar and domestic threats.