Morty Mouse has a grey mouse head, with white teeth, black nose with black whiskers, huge ears and a bit of hair. His eyes are black with two white pupils. He has a blue torso with black arms and black legs.
In 3717 Mouse Fishing at Dock Morty is seen with a white fishing cap.
- Morty has appeared in four sets, and two Key Chains.
- Morty is known as Lazy Mouse in some LEGO catalogues.
- 132 Cottage
- 341 Cathy Cat's & Morty Mouse's Cottage
- 3666 Service Station
- 3671 Airport
- KCF35 Mouse Key Chain
- KCF65 Mouse Key Chain
- 3717 Mouse Fishing at Dock