Four episodes into "The Big Bang Theory" and Amy (Mayim Bialik) and Sheldon (Jim Parsons) are sadly still not back together. As a couple that was literally meant to be together from the very start, it was a break-up we never saw coming. It ended just as Sheldon was ready to take their relationship to the next level, and while the two still remain apart, it looks like the producers may have some new love interests in mind.

Stephen Merchant and Analeigh Tipton were just cast to guest star on the hit show for an upcoming episode, according to Entertainment Weekly. The only thing that is confirmed about these new temporary cast members is that Tipton, who has been on the show before, will definitely be playing a new character. She once appeared as herself during season 2 when Howard (Simon Helberg) and Raj (Kunal Nayyar) tried to sneak into the "America's Next Top Model" mansion.

It is unclear exactly what their roles will entail, but their characters are rumored to interact with Amy and Sheldon, as audience members who attended the taping of Episode 9 have suggested that they will be their dates, TVLine reported. Fans are hoping that these two characters don't mess with Amy and Sheldon's minds too much, and hopefully it'll only make them realize that they truly are meant to only be with each other.

"The Big Bang Theory" airs Mondays at 8 p.m. on CBS and will then move back to its regular Thursday night timeslot on Nov. 5.