|[List of appearances]|
HELIOS-3D is an Assassin Droid in LEGO Star Wars III: The Clone Wars.
HELIOS-3D has the same appearance as a generic Assassin Droid. He has a silver battle droid torso and silver battle droid arms and legs. His head consists of an upside-down silver cone, upon which is placed an upside-down translucent-orange stud and, in turn, an upside-down silver stud. His head is attached to his body with a silver robot hand element. He carries a black sniper rifle.
- While HELIOS-3D himself has never appeared in any sets, the nearly-identical Assassin Droid minifigure has.