Third (and final) appearance of "The Terrible Trio"; previous appearance in STRANGE TALES #122 (July 1964). With his costume and flying carpet, Yogi Dakkor may have served as the inspiration for the 1967 SPIDER-MAN cartoon villain, "The Fabulous Fakir." Johnny & Doris have a run-in with The Beetle, Peter Parker (and Spider-Man) in AMAZING SPIDER-MAN #21 (February 1965) shortly before this story.
On this issue's letters page, Stan says he "asked Steve to come up with something really different for next issue," indicating that Ditko may have been plotting the series solo for some time.
Letters from Robert Weis, Robert Metz, Clint Bigglestone, Bob Suter; The Mighty Marvel Checklist