Drill is a mandrill and one of Clarice's friends. He has black fur, white, red, and blue face, and red eyes.

Drill was born to one of Le Paradox's guardsman. He was raised by his father after his mother died of a mysterious illness. Drill and his father volunteered at the local orphanage. Drill met Clarice le Paradox and immediately fell in love with her. He asked his father to adopt her so they could be together, but he said no. Angered, Drill checked himself into the orphanage to be with Clarice. He was adopted by the Cooper Gang.

He is a fairly serious individual but has an interest for the eccentricities of both life and the various people he meets. He frequently threatens people into leaving Clarice alone, as he holds feelings for her. However, he is not above employing sarcasm in conversation with certain characters, particularly those he sees as exhibiting hypocrisy and negligence. Drill is shown to be very determined to save his family.

His main weapon of choice is a staff with a green jewel at the end.

Trivia:

Drill's name comes from Mandrill.

He is the second strongest male member of the Cooper Gang.