Mr. Gabriel Utterson-- trustworthy, rational; not judgmental. He is also not overly interesting.
Dr. Henry Jekyll-- proper Victorian doctor craving evil. He is too good, but longs to be evil.
Mr. Edward Hyde-- short, evil, violent, and hairy alter ego of Dr. Jekyll. He takes over and ruins lives.
Dr. Hastie Lanyon-- enthusiastic, scientific, logical, and civil. He cannot accept Dr. Jekyll's evil attitude.
Mr. Enfield-- He is unfazed by most things, and he has good morals and manners.
Poole-- an old, reliable character. He is a butler who is polite, loyal, and knowledgeable about his master.