With the revelation of Sun as one of the Oceanic Six, all six members have been revealed. Executive producers and writers Carlton Cuse and Damon Lindelof left the identity of the sixth deliberately ambiguous to provoke debate after the episode. "Ji Yeon" is the first episode since the second season finale, "Live Together, Die Alone", in which Harold Perrineau, Jr. appears as Michael Dawson. Perrineau was the only actor from the original cast of fourteen to not appear in the third season of "Lost". Perrineau was "really hurt" by the creative decision to leave him out, and went on to appear in the British horror film "28 Weeks Later" and "Demons", a pilot for CBS. When the latter was not picked up by CBS, Perrineau returned to "Lost"; his return was confirmed during "Lost"s slot at the 2007 Comic-Con International. "Ji Yeon" was watched live or recorded and watched within six hours of broadcast by 12.083 million viewers in the United States, achieving a 4.9/13 in the key adults 18–49 demographic and ranking fourth for the week in viewers. The episode brought in 689 000 viewers in Australia and was in the top five key adults 25–54 and 18–49 demographics for the night. Mark Madley of the "National Post" praised the episode for "[continuing] the near-perfect season four". He asked "has there ever been an episode that answered so many questions yet advanced the plot so little?", but immediately noted that the question was not negative. He also found Jin's line "I will hunt you down and rip your head off!" particularly humorous. Tim Goodman, critic for the "San Francisco Chronicle", thought highly of the romantic plot of the episode, and more generally the characters of Jin and Sun, noting that ""Lost" has always treated the Jin and Sun relationship with both interest and respect" and "few primetime televised portrayals of intimacy among Asians have been this well done." Matt Roush of TV Guide stated that the episode made him cry, the "ultimate compliment in the Roush playbook". Later in his review, he commented he was "already a puddle of emotion before the climactic reveal". In comparison, the TMZ.com staff gave a largely negative review. The reviewer thought that "[they] feel like [Lindelof and Cuse] purposely manipulated us with Jin's flashback and the reveal really wasn't even all that interesting as a result.