Story: "The Vamp Act One" (24 Pages)

Credits:

Matt Wagner and Stephen T. Seagle (plot, script)
Guy Davis (pencils, inks)
David Hornung (colors)
Android Images (color separations)
John Costanza (letters)
Shelly Roeberg (assistant edits)
Karen Berger (edits)

Feature Character:

Sandman I (last in Sandman Mystery Theatre Annual #1)

Supporting Characters:

Dian Belmont Lawrence Belmont
Tony Burke (all three last in Sandman Mystery Theatre Annual #1)
Carol Swanson (last in issue #10)
Ross O'Donald (in between issue #4 and #15)

Villains:

Madeline Giles (first appearance)

Other Characters:

Trudie
Betsy (first appearance of both; old college friends of Dian's)
Bernie (first appearance; a jazz musician) Wentworth (first appearance)
Trevor Barnes (first appearance; dies)
Barry Smithers
Freddie (first appearance of both; Trevor's old Delta Phi fraternity brothers; both next in issue #15)