Superboy in "The Terrible Truant"
A teenager from the world of Xanadu lands in Smallville, and causes problems for Superboy with his super-scientific gimmicks.
Aquaman in "The Hunter of the Seven Seas"
Johnny Quick in "Stand-In for 100 Convicts"
Johnny helps clear the names of 99 convicts.
"You'll See Stars"
Green Arrow in "Around the World in Eighty Arrows"