Season 4 of "Agents of S.H.I.E.L.D." is mostly about Robbie Reyes and how he became the Ghost Rider. The recent episode of the series have finally shown how it happened and it's possible that fans will even get more than what they asked for. A recent tweet of Gabriel Luna shows two Ghost Riders working together and fans are speculating that the original Ghost Rider aka Johnny Blaze could be doing a cameo on the show.

Last November 2, Gabriel Luna's tweet was captioned with the hashtag "#Ghostriders" that made fans believe that it is a hint on what to expect in the coming episodes of the series. The photo with the post was over two years old so it may not be just an accident because he could have just posted a recent photo of Ghost Rider. He specifically chose a photo that shows two Ghost Riders teaming up. The latest episode of the series did not reveal the original Ghost Rider's identity or face but if the rumors are true - fans will be able to get to know him pretty soon.

Gabriel Luna is the actor that plays Robbie Reyes in the series. In the story, he was the second Ghost Rider and received his power from the original Ghost Rider himself. His post has definitely made fans more excited for the upcoming episodes of the series as it's not entirely impossible to happen.

This information has not yet been confirmed as Gabriel Luna may just be posting a photo of his character for no reason. Reports claim that Johnny Blaze is just one of the Ghost Riders who like motorcycles and leather jackets but the series did mention it was really Johnny who handed the power to Robbie. In addition, the latest episode shows a Quentin Carnival poster which is where Blaze worked when he was still a motorcycle stuntman.

"Agents of S.H.I.E.L.D." airs every Tuesday on ET and the next episode can be watched on November 29 at 10 PM.