Utterson

• Utterson and Jekyll have a very strong relationship, and this drives the plot forward.
• Both intrinsic curiosity and concern for his friend cause Utterson to uncover the case of Jekyll & Hyde.
• Their friendship is tested when Utterson discovers that Jekyll has been hiding something from him.
• Their relationship appears to have an unconditional quality of loyalty to it, it is seemingly unphased by differences in opinion.
• Utterson is a neutral character. 
• Utterson's care for his friend is unwavering throughout despite Jekyll's growing self imposed isolation.