Hamza Haq) was shocked by a visitor from his past — and gruff-but-beloved medical chief Dr. Jed Bishop (John Hannah), whose life Bash saved in the series premiere, suffered a serious stroke that left him unconscious.“I signed on to the show to do one season, and I fully expected the story arc would take one road or another and be a one-season play,” the Scottish-born Hannah, 59, told The Post.