On 5 December 2025, previously unreported allegations about Cho Jin-woong's past spread through Korean media and online. The next day the actor — one of Korea's most bankable film stars — announced his retirement from acting. tvN's Signal 2, the long-awaited sequel to the 2016 hit and the centrepiece of the channel's 20th-anniversary slate, had wrapped filming in August and was deep in post-production, with Cho in the lead role the sequel was built around.

The first cost was financial. Under the revised standard broadcast contract, a penalty for an actor's breach is double the appearance fee — at roughly 100M won per episode across eight episodes, that put the floor above 1.5B won, and industry sources told Money Today that a claim could reach the 10B-won class. The production itself was reported to have cost hundreds of billions of won, most of it already spent.

The second cost was the show itself. Sources told YTN that replacing Cho was practically impossible: reshoots would cost nearly as much as the original shoot and would not restore the chemistry of the original cast. tvN said it was monitoring the situation and discussing the schedule; as of mid-December no decision had been announced.

Markets priced the uncertainty immediately: Studio Dragon fell 1.54% to 38,350 won on 8 December, and CJ ENM lost about 5% over the week. Signal 2, written by Kim Eun-hee and reuniting the 2016 cast, had been positioned as the flagship of tvN's 20th anniversary — and it sat in post-production with its future undecided.

The stranded Signal 2 cost tvN its 20th-anniversary flagship, with breach claims up to 10B won and hundreds of billions already spent on unusable footage.

Signal 2 was built around him: the sequel reunited the original trio, and there was no version of the show without him — reshoots with a substitute were seen as practically impossible.

The revised standard contract doubles the penalty: double his roughly 800M-won fee for eight episodes put the floor above 1.5B won, and industry sources put a claim's ceiling in the 10B-won class.

The timing made it a flagship problem: a stranded 20th-anniversary sequel cost Studio Dragon 1.54% in a day and CJ ENM about 5% in a week — a schedule, brand and stock problem at once.

The money was already spent: filming wrapped in August; hundreds of billions of won sat in finished footage that could not air.

A star-led show is a single point of failure: money spent, one day of news, nothing deliverable. Doubling the penalty prices the risk — it does not remove it.

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The sources

  1. Sports Donga — Cho Jin-woong announces retirement amid controversy; Signal 2 in post-production sports.donga.com
  2. Money Today — Signal 2 penalty could reach the 10B-won class; production cost in the hundreds of billions mt.co.kr
  3. YTN — Cho Jin-woong's retirement; hundreds of billions invested make reshoots nearly impossible ytn.co.kr