making OCs of my dead animals

Names of my dead animals: Name: Smooch Age: 13 Gender: male, dog Name: Gizmo Age: ??? Gender: male, cat Name: Riley Age: ??? Gender: Male, cat Name: Snowball age:??? Gender: Male, cat Name: Charli Age: ??? Gender: Male, cat Name: Bumbles Age: ??? Gender: male, cat Name: Sadie Age:??? Gender: Female, cat Name: Pepper Age: less than 3 months Gender: Female, dog Name: Bootsy Age: 9 Gender: Female, cat Name: Prometheus Age: 2 Gender: male, snake Name: Morticia Age: 1 Gender: Female, mouse Name: Gomez Age: 1½ Gender: male, mouse Name: Aphrodite Age:3 Gender: Female, snake