<P> The series reunites Cha Seung - won, Lee Seung - gi, and Lee Hong - gi with the Hong sisters, who have worked together in the TV series The Greatest Love (2011), My Girlfriend Is a Nine - Tailed Fox (2010) and You're Beautiful (2009) respectively . It also reunited Hong sisters and director Park Hong - kyun, who worked together on Warm and Cozy (2015) and The Greatest Love (2011). It also reunites Lee and Cha who starred together in You're All Surrounded (2014). </P> <P> On December 27, it was announced that director Kim Jung - hyun will join the production . A third director, Kim Byung - soo was added to the production on January 5, 2018 . </P> <P> According to data released by Nielsen Korea, A Korean Odyssey ranked the most - watched show of its time slot including both cable and public broadcasting channels for its premiere episode . Moreover, the series broke the record for the highest ratings for the first episode of a tvN drama in the Nielsen Korea 20 - 49 year - old target audience bracket . </P> <P> On December 24, episode 2 broadcast was repeatedly interrupted by long commercial ads during which tvN displayed a message stating that there are "internal issues delayed the broadscast". The broadcast then resumed but then was later abruptly cut altogether . tvN issued an apology stating that there was "a delay in the computer graphics process" and that "the finalized version of episode 2 is set to air on December 25 at 6: 10 p.m. (KST)." </P>

A korean odyssey season 1 episode 3 cast