A fender bender is on the way and it will be insanely awesome. The geeks of "The Big Bang Theory" are set to run into a famous star that will make some characters bounce off the walls and one, green-eyed. "Firefly" and "Castle" actor Nathan Fillon is set to make an appearance in the sitcom just to make the intellectuals bright-eyed and bushy-tailed. 

Just like any other fanatic, Raj (Kunal Nayyar) and Leonard (Johnny Galecki) squabble, questioning their sighting at the restaurant while at the back of their minds, they consider sharing a selfie with the actor.

Entertainment Weekly said that the two, at some point, must wonder what Jason Bateman is doing at the bistro. Fillon has been mistaken for the actor multiple times. In his ABC series "Castle," Fillon was thought to be Bateman and they really do look alike. Nevertheless, Raj and Leonard are in the face of an important moment and not taking a photo with their idol would be a total bummer. 

Meanwhile, Sheldon (Jim Parsons), who also was a huge fan of "Firefly" and frowns upon its untimely cancellation, misses the rare chance to see his beloved Captain Tight Pants. According to The Inquisitr, the upcoming episode titled "The Comic Book Store Regeneration," which is to be aired on Feb. 19, is going to be a "tearjerker" despite the Fillon excitement. 

Fillon is not the first "Firefly" star to show up in "The Big Bang Theory." Before him, Summer Glau also put in an appearance in an episode from season 2 of the show.

Before Fillon guest stars in the show, Sheldon and Leonard will have to deal with Internet trolls messing with their physics paper in the upcoming episode titled "The Troll Manifestation" to be aired on Feb. 5. The girls, on the other hand, will talk about their embarrassing moments that involve fan fiction, beauty pageants and bad movies.