Superman and Kolchak: The Night Stalker

 

Superman has never been crazy about dealing with the supernatural, so I can see him calling in an ally like Kolchak in those types of situations.  I wonder what Kolchak would make of working with a Kryptonian, though.

The Spectre and Kolchak: The Night Stalker

I really hope that once The Spectre assumes his ghostly form at some point in the final two episodes of the Crisis on Infinite Earths CW event, he looks close to his comic book counterpart. Stephen Lobo doesn't really resemble Jim Corrigan (another hero de-gingered!) but we have only seen him as a human thus far.  They had another actor playing Corrigan in the short-lived Constantine series, and they gave him a nice Spectre-like effect when foreshadowing  future developments that alas, never came to pass - that looked pretty cool even if it was brief.