I always tell my students to complicate your characters: never make it easy for the reader. Nobody is ever one thing. That's what makes characters compelling.

The one thing that's always very safe to say with 'Arrow' is never make assumptions.

When I worked with Bill Nighy on 'Wrath of the Titans,' he said to me, 'There's one thing you can promise me, and that's never, ever, ever read your reviews.'

The one thing you've gotta do is that you need to always do the best you can do, no matter what the given situation, no matter what comes up against you. You do the best you can do, and you never give up. Never quit.

I'll tell you one thing you can't do: you can't put your shoes on, then your socks on.

In the 'Buffy' room, it was never about a plot twist, ever. It was always about, 'Tell the story, tell the characters, complicate their lives, make things get worse,' but we never worked backwards from the plot, and it was always a great lesson.