Jang Seung-jo Joins 'Doctor X' as New Rival Ahead of Episode 3
Jang Seung-jo makes a special appearance as Na Dae-il, a former military doctor who becomes a new rival to Kim Ji-won's Kye Su-jeong.
Jang Seung-jo is making a special appearance in the SBS Friday-Saturday drama 'Doctor X: The Age of the White Mafia,' the network said. He plays Na Dae-il, a newly appointed surgery professor at Guseo University Hospital.
Na Dae-il is a former long-serving military doctor with extensive clinical experience who becomes a new rival to Kye Su-jeong, the genius surgeon played by Kim Ji-won.
Episode 3 of 'Doctor X: The Age of the White Mafia' airs on October 16 at 9:50 p.m.
According to joynews24.com, the drama recorded a peak viewership rating of 17.4% in its first week of broadcast in October 2025. It also ranked first in Netflix's global non-English TV shows category.
Quick answers
When does Jang Seung-jo appear in 'Doctor X: The Age of the White Mafia'?
He appears in episode 3, which airs on October 16 at 9:50 p.m.
Who does Jang Seung-jo play in 'Doctor X: The Age of the White Mafia'?
He plays Na Dae-il, a newly appointed surgery professor at Guseo University Hospital and a new rival to Kye Su-jeong.
Where can I watch 'Doctor X: The Age of the White Mafia'?
The drama airs on SBS. It also ranked first in Netflix's global non-English TV shows category.