he guessed correctly:
Alien (from alien movie 1979)
Predator (from fox pictures)
Space marine (from the 'Aliens' movie)
Zoey, Coach, Louis (characters from left 4 dead)
John Wayne
Paul Tibbets
Adolf Hitler
Arnold Schwarzenegger
Patton
Cowboy Bebop (Japanese anime)
Dexter (dexter's Lab)
Didi (Dexter's lab)
Drew Barrymore
Adam Sandler
ZED (FROM THE MOVIE ZARDOZ)
Michael "squints" palledorious (from the movie 'sandlot')
Joel (from mystery science theater 3,000)
Johnny Five (from Short Circuit films)
Robocop
Akinator (himself)
HAL 9000 (2001 space odyssey)
and about a dozen others i cant think of right now
I only stumped him on a few... but i think thats because i was unsure of certain info and clicked "i dont know" on several questions in a row