Harold Norbert Cheever Doris McGrady V was a camper on Total Drama Island as a member of the Killer Bass. He was also a cast member on Total Drama Action as a member of the Screaming Gaffers. He later competed on Total Drama World Tour as a member of Team Victory. He was seen with the original contestants on a yacht in the first episode of Total Drama: Revenge of the Island. A skinny, awkward-looking guy, Harold takes immense pride in his numerous "mad skills." Although he isn't much to look at and is often disrespected by many of the other contestants, including his own teammates, Harold is actually an incredibly resourceful young man of many talents and has won several challenges, both for himself and his various teams. Harold's geeky interests, his somewhat poor personal hygiene, and his know-it-all personality often make him an outcast among his fellow contestants and a perfect target for bully Duncan. Although Duncan hates Harold for his uncool ways and Harold hates Duncan for his bad attitude, it appears the two have begrudging respect for one another at the same time. A telling confessional Harold makes in One Million Bucks, B.C. points out that both are willing to put their differences aside when forced to work together.
In Total Drama Island, Harold develops a crush on Leshawna and, although she is initially put off by the strange boy, she eventually comes to see him as a true and loyal friend. He has an interest in music, as evidenced by his skills in beat boxing, keyboard, and rapping. Harold was also one of four boys to be in The Drama Brothers, and sometimes interrupted the songs in Total Drama World Tour to add his own hip-hop section. Harold is also known to be very confident in his knowledge and will not hesitate to correct other contestants, or even Chris, if they present information that is false or inaccurate.