He first appeared in Justice League Europe #16 (July 1990), and was created by Keith Giffen, Gerard Jones, and Bart Sears.

[1][2] The second Tracer is a robotic duplicate of the first who was created by inventor Mitch Wacky on Angor as part of a theme park attraction.

It battles Justice League Europe before being defeated and exhibited in Madame Clouseau's Wax Museum in Paris.

[3] A third incarnation of Tracer appears in the Countdown to Final Crisis tie-in series Lord Havok and the Extremists.

This version is Vincent Cade, a soldier who was injured after a failed attempt to desert his post and subsequently gained superpowers from government experiments.