A meteor from another dimension entered the parallel reality of Earth-C and crash-landed on the planet. The fragments of the meteor produced waves of radiation which endowed several individuals with super-powers including, Timmy Terrapin. Timmy became the super-hero known as Fastback and joined with Cap'n Carrot and his Zoo Crew.
This section of the history takes place during Convergence, a massive crossover event revisiting characters from past eras and realities. The villains Brainiac and Telos plucked them from their own timeline and stored them together, causing them to cross over into each others reality. Its precise chronological placement and canonicity may be unclear
Fastback was one of many taken to Convergence. He encountered Wally West and his kids and helped the defeat Flashpoint Wonder Woman and her army.
- Fastback's uncle, the Terriffic Whatzit is a shell-less turtle who wears a costume which looks exactly like the one worn by the Golden Age Flash.
- 35 Appearances of Timothy Joseph Terrapin (Earth-C)
- 6 Images featuring Timothy Joseph Terrapin (Earth-C)
- 1 Quotations by or about Timothy Joseph Terrapin (Earth-C)
- Character Gallery: Timothy Joseph Terrapin (Earth-C)