Several pictures posted on social media outlets show Bale visiting patients at the Medical Center of Aurora.
Carey Rottman, a 27-year-old victim recovering from a bullet wound to his leg, posted two photos of himself with Bale on his Facebook page.
Bale also visited a makeshift memorial to the victims near the theater. He walked past the 12 crosses erected for each of the slain victims, with many people there not realizing who he was.
A Warner Bros. spokeswoman told The Denver Post on Tuesday that Bale was representing himself, not the movie studio.
There's been an online campaign urging Bale to visit the victims of the shooting, which also killed 12 people.
(KUSA-TV © 2012 Multimedia Holdings Corporation)