Igner is the youngest and most pitiful of Mom's three sons. His older half brothers are Walt and Larry. Like them he owns a 0.1% share in MomCorp. His intelligence is extremely low and he often displays the symptoms of mental disability. He speaks in a stereotypically moronic voice and is often found saddled with the worst tasks by his brothers: being bullied into wearing Mom's bra and playing the part of Pamela Anderson's body for her head in a jar. His immaturity means he gets disgusted easy and he has a tendency to repeat what he hears without full comprehension, for example: in Bender's Game, Igner repeats the phrase "We're owl exterminators" twice and pronounces exterminators wrong.