Moira Queen is Oliver and and Thea's mother. After her husband, Robert died, she married Walter Steele. She also knows a lot more about Oliver's shipwreck than she has shown.

Moira Queen Quotes

Oliver: She's testing you.
Moira: Yes, and who'd she learn that from?

You know five years ago your irresponsibility was somewhat charming. It is a lot less so now.

Moira

Arrow Quotes

You know Oliver, somebody once told me that secrets have weight. The more you keep, the harder it is to keep moving.

Diggle

Ra's al Ghul: You tasted death and you wanted more, but the truth is everyone and everything must come to an end. Even for one such as me.
Oliver: Kill me, but spare John Diggle's life. Let him go. I will beg for it.
Ra's al Ghul: You have shown tremendous strength, fortitude, power. No, Mr. Queen. I don't want to kill you. I want you to take my place. I want you to become the next Ra's al Ghul.