Gravedigger is the smug, sadistic sort who enjoys lording his power over others but is not the sharpest tool in the shed. He has a weakness for obscene gestures.
As one of the Constructicons, he specializes (presumably) in excavation.
Gravedigger was among the Constructicons excavating Mount Lomas to create a secret base. When Skids and Bumblebee were captured, Gravedigger gleefully explained the Decepticons' evil plan "since you are going to die anyway."
Surprisingly (and possibly for the first time ever), Gravedigger was right. Skids and Bumblebee were disassembled and their parts used to construct the Autobot Memorial Power Plant. When their comrades came looking for them, they too were captured and used for scrap.
- It's not clear if Gravedigger is one of the "extra" Constructicons who litter The Transformers, or if he simply replaces Long Haul in the Find Your Fate Junior continuity.