Several iterations of Heavy Duty have existed in different G.I. Joe series:
- Heavy Duty - the original heavy ordnance expert from the A Real American Hero series.
- Heavy Duty - the muscle-bounded macho man from the Sigma 6 series.
- Heavy Duty - the heavy weapons specialist appearing in the 2009 film
However, he shouldn't be confused with:
- Heavy Duty - the code name initially used by the character Roadblock and appearing in the comics continuity by IDW Publishing.