Deadline is a fictional villain in the DC Comics universe. He first appears in the story "Deadline Doom!" in Starman #15 and was created by Roger Stern.
Deadline as depicted in Who's Who in the DC Universe #2 (September 1990). Art by Tom Lyle (penciler), Scott Hanna (inker), and Anthony Tollin (colorist).
Starman is a name used by several different DC Comics superheroes, most prominently Ted Knight and his sons David and Jack.
A collage of various Starmen (clockwise from top): Thom Kallor (background), Mikaal Tomas, Ted Knight, the Starman of 1951, Prince Gavyn, Jack Knight, and Will Payton (center). Art by Tony Harris and Alex Ross.
Cover to Starman (vol. 2) #0, art by Tony Harris and Alex Jay.
Kallor as Starman, art by Alex Ross.