Gillian Anderson acts.
Gillian Anderson . Her film work includes the dramas The Mighty Celt ( 2005 ) , The Last King of Scotland ( 2006 ) , Shadow Dancer ( 2012 ) , Viceroy 's House ( 2017 ) and two X-Files films : The X-Files : Fight the Future ( 1998 ) and The X-Files : I Want to Believe ( 2008 ) . The Mighty Celt . It stars Gillian Anderson , Robert Carlyle , Sean McGinley , Ken Stott and Tyrone McKenna .