Dogen is one of the Temple Dwellers. He appears to have a leadership position amongst the group. ("LA X, Part 1")
Name reference
Dōgen was the name of a prominent Japanese Buddhist philosopher, who founded the Soto Zen tradition. He was, for much of his life, the head of a monastery, Eihei-ji (which roughly translates to 'the temple of eternal peace').
The historical Dōgen died on September 22, 1253, the same calendar date as the original Oceanic Flight 815 crash.
"The Dogan" is the name of a military outpost in Stephen King's Dark Tower series.
Trivia
Dogen is fluent in English and Japanese, but prefers to speak in Japanese with a translator. He says that he does not like how English tastes on his tongue.
