Nichols planned to leave Star Trek after the first season and return to musical theater, but a chance meeting with Martin Luther King, Jr. convinced her to stay. He was a fan of the show and felt that her character signified a future of greater racial harmony and cooperation.
In "Extreme Risk", B'Elanna Torres tells Neelix that her grandmother used to make her banana pancakes with maple syrup and it always put a smile on her face. Neelix responds by replicating a stack of banana pancakes. "Well then," he says, "one smile coming right up."
In order to catch the traitorous Michael Eddington, Sisko launches a biogenic weapon composed of trilithium resin that poisons the atmosphere of a Maquis colony and forces Eddington to surrender. Needless to say, he doesn't clear this tactic with Starfleet.