[3] Although not called the Reverse-Flash, Dr. Edward Clariss was a professor at the university attended by the Golden Age Flash, and had recreated the formula which was behind Jay Garrick's speed.

He hears Joan Williams (Garrick's girlfriend) talking about how the Flash's own speed was given to another student, which helped him develop the formula.

Now pure speed energy, he possesses fellow Golden Age speedster Max Mercury.

In The Flash: Rebirth #4, Max escapes from the Speed Force and is rejuvenated by Wally West's energy; this allows him to return to Earth in a new body.

Another Golden Age Reverse-Flash is a robot whose only appearance was in one panel of The Flash #134 (February 1998), where he is defeated by Garrick.

[6] While other speedsters cannot change the past without dramatic consequences, his ability to travel and manipulate time is able to drastically alter history and completely erase people from existence is due to having corrupted the Speed Force which created a negative version.

Inertia and later Kid Zoom) first appeared in Impulse #51 (August 1999), and was created by Todd DeZago and Mike Wieringo.

When Bart aged five years after Infinite Crisis and became the Flash, Inertia fought his genetic template again.

Inertia is primarily a speedster, remaining disconnected from the Speed Force after Infinite Crisis and injecting himself with Velocity 9.

Inertia briefly shares his powers before his death with Zoom, who lends him his speed to pressure him into becoming a new Kid Flash.

[8] Inertia was later resurrected due to Doctor Manhattan's modifications on the timeline, but is currently trapped in the Speed Force.

[10] The Eobard Thawne incarnation of the Reverse-Flash appears in Lego DC Comics Super Heroes: The Flash, voiced by Dwight Schultz.