Robert "Big Bob" Pataki is Helga's thoughtless and cruel father, a successful beeper salesman who owns a beeper store and a character in the animated series Hey Arnold!. He has extremely high expectations for Helga and frequently compares her to her older sister Olga.
Bob has difficulty showing his emotions for Helga since she and he always come into conflict with each other and clash. He often mistakenly calls Arnold "Alfred". He hates Arnold because he has no parents. He never listens to Helga and negelcts and ignores her and is cruel and puts too much stress on Olga. His wife must have hatred towards him as she is depressed and mopes around all day because of his abuse. Bob is a selfish jerk and only thinks of himself and his business. He was voiced by Maurice LaMarche.
However, in the episode "Big Bob's Crises", Big Bob appears to finally have redeemed himself after having a heart attack. Big Bob then promises himself and everyone else that he will try to be nicer to other people other than himself.
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