They introduce new characters every season. Its part of the show now. Just because they're recurring doesn't mean they'll be getting a flashback or anything. To expand the universe, to explain the Others, to explain what Jacob and Un-Locke are, we need an expanded Lostverse, and new characters are necessary for that. We just killed off and will never see again quite a few recurring characters from Dharma days, Chang, Horace, that wormy guy who was also on Mad Men, Faraday, etc. I trust the producers here.

They introduce new characters every season. Its part of the show now. Just because they’re recurring doesn’t mean they’ll be getting a flashback or anything. To expand the universe, to explain the Others, to explain what Jacob and Un-Locke are, we need an expanded Lostverse, and new characters are necessary for that. We just killed off and will never see again quite a few recurring characters from Dharma days, Chang, Horace, that wormy guy who was also on Mad Men, Faraday, etc. I trust the producers here.

If they must do this, I hope Lennon turns out to be Mr. Paik's most powerful lackey, because in this final season I want to see Paik (and after a coup, SUN) take center stage and set both Widmore & Linus off balance. At first he'd appear to kiss Paik's hindquarters but then we learn via flashbacks that he's surreptitiously enacting Sun's agenda.

This way the "Lennon" character would serve a much needed purpose among the characters we already have, and then can be easily disposed of after the plot strings are sufficiently tied together. We just need someone to speak on Paik's behalf who would later betray him to Sun.

If we could use Lennon to connect the dots between Libby and Jae Lee, that'd be a bonus. At this point characters should only be introduced who can answer questions and not pose new ones.

If they must do this, I hope Lennon turns out to be Mr. Paik’s most powerful lackey, because in this final season I want to see Paik (and after a coup, SUN) take center stage and set both Widmore & Linus off balance. At first he’d appear to kiss Paik’s hindquarters but then we learn via flashbacks that he’s surreptitiously enacting Sun’s agenda.

This way the “Lennon” character would serve a much needed purpose among the characters we already have, and then can be easily disposed of after the plot strings are sufficiently tied together. We just need someone to speak on Paik’s behalf who would later betray him to Sun.

If we could use Lennon to connect the dots between Libby and Jae Lee, that’d be a bonus. At this point characters should only be introduced who can answer questions and not pose new ones.