Ji Soo joins the star-studded cast of the highly top rated Korean drama "Doctors," alongside Park Shin-hye and Kim Rae-won.

In the earlier episodes of the SBS's Monday-Tuesday drama, Ji Soo's character Soo Chul showed interest to Yoo Hye-jung, which is portrayed by Park. He is the childhood friend and one-sided love for the bold heroine. Then he disappears because the drama had a time shift of 13 years and did not include Soo in the most recent episodes.

According to Asia Times, there are speculations that Ji Soo will return in the upcoming episodes as a part of a love triangle with Park and Kim. The top-rated drama also recently released new still cuts of Ji Soo in the production scene to create curiosity among fans, making those speculations true. In the still cuts, his masculine characteristics were shown, while other photos indicate that he is looking at his script.

Many viewers will be in awe as to how Ji Soo will affect the intimate relationship between Shin-hye and Rae-won, as Soompi reported.

The most recent episode involves Park and Kim got engaged in a boxing duel upon meeting after the long separation. Kim portrays the character Hong Ji-hong, Park's mentor who plays a role in transforming her life from a helpless gangster to a compassionate doctor.

The medical-themed romance drama "Doctors" is currently a huge hit with double-digit viewership ratings. It topped the popularity charts both on its launch week and the succeeding episodes. It stars Shin-hye, Rae-won, and Kim Min Suk, who all portray as neurosurgeons. It is aired on SBS every Mondays and Tuesdays at 22:00 KST.

Here is the recent episode of where Park Shin-hye and Kim Rae-won had a boxing duel.