James Oliver Cromwell is an American actor. Some of his more notable films include Babe (1995), Star Trek: First Contact (1996), L.A. Confidential (1997), The Green Mile (1999), Space Cowboys  (2000), The Sum of All Fears (2002), I, Robot  (2004), The Longest Yard (2005), The Queen  (2006), Secretariat (2010), The Artist (2011), and Marshall (2017), as well as the television series Angels in America  (2003), Six Feet Under (2003–2005), and Halt and Catch Fire (2015).

He provided the voice for Yokai/Robert Callaghan in Disney's 2014 animated feature film, Big Hero 6.