[[File:Brock and Rotom.png|thumb|left|Rotom transforming]]
Rotom has a body of plasma and shaped like a lightning rod. There is a whitish blue aura of electricity around it that forms lightning bolt-shaped arms. It has teeth, and its unique, blue eyes have a dividing line across them. [[DP105|As seen in the anime]], Rotom will often pull pranks on unsuspecting people.
[[File:Rotom parts.png|thumb|150px|Rotom and the appliances]]