With the fourth season of ABC's superhero series "Agents of SHIELD" on its way, it was recently revealed by the show's panel at San Diego Comic-Con 2016 that a new superhero, Ghost Rider, will be debuting in the upcoming season.

Several rumours and speculations had been circulating across the internet for sometime regarding which superhero will be joining the series ever since a promotional image of Season 4 was revealed, prior to Comic-Con.

The picture features the iconic logo of SHIELD on fire with a flaming chain across it. The new logo was also displayed at the Comic-Con. Earlier rumours stated that the new poster hinted at Hellfire (Axle Whitehead), who debuted in Season 3. Hellfire was granted Inhuman powers by Hive, who had possessed the body of dead Agent Ward (Brett Dalton).

However, fans doubted why a recurring character from the previous season will be projected as the central subject in Season 4. The speculations finally came to an end when Ghost Rider's debut was officially announced at the Comic-Con.

There are several versions of Ghost Riders featured in Marvel comic books. Nicholas Cage played the character of Johnny Blaze in the live action movies. However, the Ghost Rider in "SHIELD" won't be Blaze's version, but will be Robbie Reyes, who will be driving a flaming car instead of the iconic blazing motorcycle, as reported by Marvel.

The character of Robbie Reyes will be portrayed by Gabriel Luna of "True Detective" and "Matador" fame. In the comic books, Robbie is a teenager who lives in Los Angeles. After meeting a mysterious person riding in a flaming car, he gets his superpowers.

According to Vine Report, Jeph Loeb, executive producer and head of Marvel Television, said, "Season 4 will unquestionably be the series' biggest, most ambitious story yet, and it all begins with the introduction of one of our greatest legacy characters in Ghost Rider."

Marvel's "Agents of SHIELD" Season 4 will premiere this fall on ABC. The exact air date has not yet been revealed and most probably will be announced soon.