Who played Peter Venkman in 'Ghostbusters'?

In which film is Oda Mae Brown a character? Who played Vivian Ward in 'Pretty Woman'? In which film is Vivian Ward a character? Who played Phil Connors in 'Groundhog Day'? In which film is Peter Venkman a character? Who played Axel Foley in 'Beverly Hills Cop'? Who played Truman Burbank in 'The Truman Show'? In which film is Truman Burbank a character?