The Siamese cat is very demanding and outgoing. They can be aggressive if not properly stimulated.
Siamese
The active Bengal breed has a more dominant personality prone to biting and scratching.
Bengal
Turkish Angoras are intelligent but can be stubborn and aggressive when annoyed.
Turkish Angora
While quiet and reserved usually, Russian Blues will fiercely protect their territory.
Russian Blue
Scottish Folds can attack their owners suddenly and bite without much warning.
Scottish Fold
Persians tend to be unaffectionate and aloof, even resorting to biting at times.
Persian
Savannahs have a wild side and can display territorial aggressive behaviors like biting and scratching people.
Savannah