Inker id by Bob Hughes (8/2005); also credited in the reprint. Professor Lang was incorrectly called Thaddeus in this story. In Superboy 37 it was established that Thaddeus is Lewis Lang's brother. When this story was reprinted in Superboy #174, it was retitled "The Gorilla with Super-Eyes!", and Professor Lang's first name was changed to Lewis.
Green Arrow has red hat