Korvac is the name of a fictional character appearing in American comic books published by Marvel Comics. He first appears in Giant-Size Defenders #3 and was created by Steve Gerber and Jim Starlin.

George Pérez was an American comic book artist and writer, who worked primarily as a penciller. He came to prominence in the 1970s penciling Fantastic Four and The Avengers for Marvel Comics. In the 1980s he penciled The New Teen Titans, which became one of DC Comics' top-selling series. He penciled DC's landmark limited series Crisis on Infinite Earths, followed by relaunching Wonder Woman as both writer and penciller for the rebooted series. In the meantime, he worked on other comics published by Marvel, DC, and other companies into the 2010s. He was known for his detailed and realistic rendering, and his facility with complex crowd scenes.