A grim MCU theory purports that there is an in-universe reason for the Hulk's recasting. 1 / 8
In The Incredible Hulk, the titular hero was played by Edward Norton. 2 / 8
This, of course, changed, and as of The Avengers the character was played by Mark Ruffalo. 3 / 8
Most consider this a simple case of recasting, unimportant to the larger canon of the MCU. 4 / 8
But a new theory claims that a one-off line from Banner in The Avengers implies a darker reality. 5 / 8
In The Avengers, Banner claims he attempted to commit suicide but was prevented by Hulk. 6 / 8
It's possible that resulting physical trauma caused Banner's face and voice to change drastically. 7 / 8
It's fun theorycrafting, but also incredibly unlikely to be considered fact. 8 / 8