Jason Voorhees arrived to read for the character of Jack. Before he could get started, Cunningham walked in and offered him a different part: Jason. Without having read a single word, Cunningham just looked at Ari and said, "You're the right size, you've got it." In the original "Friday the 13th", Ari Lehman is seen only in a brief flashback as the surprise ending. Subsequent actors who portrayed a young Jason include Timothy Burr Mirkovich in "Jason Takes Manhattan" and Spencer Stump in "Freddy vs. Jason". The adult role of Jason Voorhees has been played by various actors, some not credited, others
Jason Voorhees "The New Blood". Since Jason had been submerged under water in the previous entry, the effects team wanted Jason to appear "rotted", with bones and ribs showing, and for Jason's features to have a more defined feel to them. Howard Berger was inspired by Carl Fullerton's design in "The New Blood", and wanted to incorporate the exposed flesh concept into his model for "Jason Goes to Hell". Berger designed Jason's skin to overlap with the mask, to make it appear as if the skin and mask had fused and the mask could no longer be removed. Gregory Nicotero and Berger