Canadian stand-up comedian, writer, producer and actor. He is known for his five seasons as a cast member on Saturday Night Live, which included anchoring Weekend Update for three years. Early in his career, he wrote for the sitcom Roseanne and made appearances on shows including The Drew Carey Show and NewsRadio. He starred in The Norm Show from 1999 to 2001. Comedy Central named him #83 on the five-part miniseries 100 Greatest Stand-ups of All Time. His brother is Canadian journalist Neil Macdonald, of CBC News.