Story: "Personal Best" (22 Pages)

Credits:

Marv Wolfman (plot, script)
Jerry Ordway (pencils, inks)
John Costanza (letters)
Tom Ziuko (colors)
Andrew Helfer and Michael Carlin (edits)

Feature Character:

Superman (last in Action Comics #587; next in Superman Vol. 2 #5; also in a television broadcast that takes place in between issue #427 and Action Comics #587)

Supporting Characters:

Perry White
Cat Grant (both last in issue #424; both next in Superman Vol. 2 #5)
Alice White (Perry White's wife; first post-revamp appearance; last in flashback in World of Metropolis #2; next in issue #434)
Jerry White (first appearance; the son of Perry and Alice White)
José Delgado (first appearance; both next in issue #432)
Bibbo Bibbowski (first appearance; a former boxing champion; next in issue #447)

Villains:

Jay Falk (a mobster)
Antonio Corsetti (one of Jay Falk's hitmen)
Louis Lyppe (one of Jay Falk's men; first appearance of all three)
Eddie (first appearance; the leader of the street gang, the Cobras)
President Marlo (in a television broadcast following the previous issue; next in Suicide Squad Vol. 1 #1)

Other Characters:

Judy Groffmann
Dan (first appearance of both; two TV reporters)
Josef
Andrew (first appearance of both; two of Jay Falk's butlers)
Senator Stanton (first appearance)