Eric is a kind person. He would always help Tom and the gang with their classwork. He is the only one of the guys who is nice to Willy. However, Robert would often "brainwash" Eric into annoying him. He has also shown disapproval with Trent's habit of copying information from other websites for research projects. Later, he becomes a main antagonist in the Jet Fusion Tsunami Arc(along with Professor Calamitous and Beautiful Gorgeous), as he begins to betray Tom and co. by purposely ditching their group, and verbally abusing them. He has been appearing in almost every episode since his debut in the Season 28 episode "The Learning Continues".
Eric has fair skin, green eyes, and black hair. His outfits vary throughout the series, but he is mostly seen in one outfit, consisting of a light gray hooded jacket, a maroon short-sleeved undershirt, green cargo shorts, and black Nike sneakers. Sometimes, he would wear a black or red hoodie with a different color undershirt and blue jeans. His outfits are often seen in different colors or without a jacket. Starting with Season 37, his sneakers are gray.