Actor Kirk Alyn.
I think it was Kirk Alyn in Superman (1948).
Dean Cain
Gorge Reeves
Ben Affleck is the only actor who played both Batman or superman
Kirk Alyn was the first actor to play a live-action version of the character. He was later replaced with George Reeves who played the character in the first live-action TV series. Christopher Reeve was the next actor to play the character for the first live-action theatrical film.
Kirk Alyn was the first to play Superman in a live-action film. George Reeves was the first to play Superman in a live-action TV series. Christopher Reeve was the first to play Superman in a live-action theatrical movie.
Ben Aflick played the captain.
The late Christopher Reeve.
Every actor who played the character is the closest there will be to him existing in this world.
Superman Serials The Complete 1948 and 1950 Theatrical Serials Collection - 1948 Superman's Dilemma 1-11 was released on: USA: January 1948
Assuming you mean the 1978 film, Superman, Jackie Cooper (September 15, 1922 - May 3, 2011) played White
Before TV came into being, there was a Superman radio show. It ran from 1940 to 1951. Bud Collyer was the voice of Superman for the show and portrayed him for more years than any other actor.It looks like Kirk Alyn was the first actor to play Superman on screen, in the 1948 film serial Superman, and its 1950 sequel Atom Man Vs. Superman.The first actor to play Superman on TV was George Reeves who played him from 1952 to 1958 for the TV show Adventures of Superman. Note that Reeves had already played the Man of Steel for the 1951 movie Superman and the Mole Men.Joel Nestler played the teenage Clark Kent in the first TV episode, thus he actually appeared on screen before George Reeves in the episode so it might be argued that Mr. Nestler was the first TV Superman, but Reeves probably appeared before the start of the episode during the title sequence so the argument on that technicality would still fail.