Kimball Cho is a straight arrow of an investigator on The Mentalist. He works alongside Patrick Jane and prefers to follow cases by the book, as opposed to Jane's unique take on investgations.
Cho: Bosco's team calls us Bert and Ernie.
Rigsby: You knew that, and you didn't say anything?
Cho: It would bother you.
Rigsby: It doesn't bother you?
Rigsby: Why not?
Cho: Ernie's the clever, handsome one.
Kimball: Hey, do you wanna go to work or do you wanna play nurse with King Tut?
Grace: Work. Definitely work.