|Age||Possibly the same age as Willy|
|Height||Shorter than Willy|
Alyssa is shown as a young girl with brown/red-hair, wearing a yellow sleeveless shirt and a green long skirt with an orange stripe on it with her shoes having the same color and outline. She also has a brown handbag slung over the opposite shoulder.
Alyssa is one of Willy's best friends (and eventually his girlfriend) who is an environmental activist. A bright young girl with a knack for saying sardonic comments, she was the first of two to know about Willy being the son of Rock Zilla (besides Quincy) until "Mr. Zilla's Opus" when Willy's secret was revealed.