Claim: The Comedian stars zero American actors.
Evidence: The film stars Robert De Niro , Leslie Mann , Danny DeVito , Edie Falco , Veronica Ferres , Charles Grodin , Cloris Leachman , Patti LuPone and Harvey Keitel.
Charles Grodin -LRB- born April 21 , 1935 -RRB- is an American actor , comedian , author , and former cable talk show host.