The breed has strong protective instincts over its family, possesses fierce intelligence, and is working breed. (topdogtips.com)
With the assistance of his creations / sidekicks — a sardonic, suicidal, immortal rabbit (Steve Buscemi) whose death wish becomes an existential joke without a punch line, and a giant brain in a jar (Sean Hayes) with all the focus and fierce intelligence of a hyperactive puppy — Igor brings his masterwork to life. (seanax.com)
The actor projects fierce intelligence, wit, gentleness, ruefulness, soulfulness. (philly.com)