Story: "3-2-1 Action!, Part 3: Pal" (22 Pages)

Credits:

Kurt Busiek (plot, script)
Brad Walker (pencils)
John Livesay (inks)
Richard Horie and Tanya Horie (colors)
Travis Lanham (letters)
Nachie Castro (associate edits)
Matt Idelson (edits)

Feature Character:

Superman (also in flashback in between issue #853 and Countdown #38)

Supporting Characters:

Jimmy Olsen (last in Countdown #37; also in flashback in between issue #853 and Countdown #38)
Krypto (also in flashback in between issue #853 and main story)
Jenet Klyburn (last in issue #852)
Gina

Villains:

Kryptonite Man (in flashback following in issue #853)
Kryptonite Monkey (also in flashback in between issue #853 and main story)

Other Characters:

Jerry
Don (first appearance of both; two police officers)
Murphy

Comment: This issue is bannered as a Countdown Tie-In and takes place place in between Countdown #37 and Countdown #36.