Chell is the main antagonist of the entire Welltower series. In spite of this he gets very little time in the series until book4.
Chell starts off as a representative of Alizon to Welltower. He sometimes fills in for Mister Jolley when Jolley refuses to attend important meetings. Chell secretly betrays both Welltower and Alizon, making plans to steal light globe technology from Welltower and illegally give it to Serrin. He is probably the mastermind behind the flood and other events in the rebound war.
Significance of Name
Lester chose the name "Chell" because of its resemblance to the word "chill." He represents cold selfishness and greed.