https://www.metv.com/stories/before-he-starred-in-kolchak-darren-mcgavin-worked-as-a-real-private-eye

McGavin took "method acting" to a whole new level.

Darren McGavin: ''It's good to have the director a little scared of you.'' (https://www.metv.com/stories/darren-mcgavin-its-good-to-have-the-director-a-little-scared-of-you)

"I've worked hard to get this terrible reputation," said McGavin.