Choi San and Han Ji-eun will appear in Running Man Episode 820
SBS’s official preview introduces Episode 820 of Running Man, featuring Choi San and Han Ji-eun. The concept shown in the preview title is “The Great Operation to Save the People Bearing the Fate of the Kingdom.” What the title confirms is that the two guests appear in a preview built around this setting; it does not establish the specific scenes or outcome of the broadcast.
Their appearance was not a schedule revealed only immediately before the broadcast. Daily Sports reported on August 31, 2026, that Choi San and Han Ji-eun had taken part in the filming of Running Man. The filming report, followed by SBS’s official preview, separately confirms their appearance in Episode 820 and the broadcast scheduling.
Han Ji-eun returns about three years after her 2023 special appearance
For Han Ji-eun, the gap since her previous Running Man special is an important part of the context. Daily Sports reported that this will be her first appearance in about three years since the 2023 special. Episode 820 can therefore be described not only as a guest pairing of Choi San and Han Ji-eun, but also as Han Ji-eun’s return after roughly three years.

Choi San is also mentioned alongside a nickname associated with his ATEEZ activities. According to separate coverage, Choi San earned the nickname “Grand Duke of the North” through ATEEZ’s “BAD” challenge. However, the available material does not show how that nickname will be used in Episode 820 or whether it is directly connected to the setting shown in the preview.
Episode 820 will air on September 13 at 4:50 p.m.
The SBS official preview lists the broadcast date as Sunday, September 13, 2026. The broadcast time is shown as 4:50 p.m. Daily Sports also reported that Episode 820 would air at 4:50 p.m. because of Asian Games coverage, providing both the time listed in the official preview and the scheduling context.
The schedule for viewers to remember is Sunday, September 13, at 4:50 p.m. The guests are Choi San and Han Ji-eun, and the central phrase in the episode preview is a great operation to save the people bearing the fate of the kingdom. Because broadcast times can change based on scheduling conditions before airing, viewers should also check SBS’s latest schedule information when watching.
The preview concept should be distinguished from the actual broadcast content
The details currently available about Episode 820 are the cast, reports of filming participation, the preview concept, and the broadcast date and time. The preview title alone cannot establish how the actual mission will unfold, what roles each cast member will have, or what the outcome of the broadcast will be.
The key information currently available is therefore that Choi San and Han Ji-eun have been introduced as guests for Episode 820, that Han Ji-eun is returning about three years after her 2023 special appearance, and that the episode is scheduled to air on September 13 at 4:50 p.m. Whether the nickname “Grand Duke of the North” is used in the broadcast and how the preview concept develops into specific scenes remain questions to be answered by the episode itself.