Claim: Danny Glover appears in a significant supporting role in a movie written by Lawrence Kasdan and his male sibling Mark.

Danny Lebern Glover -LRB- born July 22 , 1946 -RRB- is an American actor , film director , and political activist . He is well known for his leading role as Roger Murtaugh in the Lethal Weapon film series , The Color Purple -LRB- 1985 -RRB- , To Sleep with Anger -LRB- 1990 -RRB- , and Angels in the Outfield -LRB- 1994 -RRB- . He also has prominent supporting roles in Silverado -LRB- 1985 -RRB- , Witness -LRB- 1985 -RRB- , Predator 2 -LRB- 1990 -RRB- , Saw -LRB- 2004 -RRB- , Shooter -LRB- 2007 -RRB- , 2012 -LRB- 2009 -RRB- , Death at a Funeral -LRB- 2010 -RRB- , Beyond the Lights -LRB- 2014 -RRB- , and Dirty Grandpa -LRB- 2016 -RRB- . He has appeared in many other movies , television shows , and theatrical productions , and is an active supporter of various humanitarian and political causes .