Walkatrout is a blue, bipedal, fish-like alien. His body shape is mostly round with legs and arms. His arms are fins and he has a tail with a fin on the end. He wears a black outfit.
The Omnitrix symbol is located on the front of his outfit.
- Enhanced Swimming- Walkatrout has enhanced swimming and can swim fast underwater.
- Slippery Body- Walkatrout has a slippery body, preventing any opponent from grabbing him.
- Underwater Breathing- Walkatrout can breathe underwater.
- Poor Combat- Walkatrout has about no way to attack his opponents. He is also short and tiny making him basically powerless over his foes.