Nick used to come into the writers' room and complain bitterly over the lack of quality in the scripts. What I knew about Nick was that he was bitching because he cared about the material and he went straight to the writers' room to try and convince them to write stuff that would be interesting for him. And I remembered him so clearly later when I was creating Da Vinci's. I knew immediately that he was probably the only actor at that time in Canada that I felt could have the right look and the experience. [on working with Nicholas Campbell on Diamonds]