Suggestions by @captainwhaddock

Nathan Lane

as James Buchanan in U.S Presidents

Bradley Walsh

as Ronald Reagan in U.S Presidents

John Hamm

as Ronald Reagan in U.S Presidents

Brendan Gleeson

as Grover Cleveland in U.S Presidents

Bryan Cranston

as Ulysses Grant in U.S Presidents

Peter Capaldi

as Woodrow Wilson in U.S Presidents

Richard E. Grant

as James Madison in U.S Presidents

Kelsey Grammer

as Jim Hacker in Yes, Mr President (Yes Minister U.S.A) 1989

Herblock

as Opening Credits Designer in Yes, Mr President (Yes Minister U.S.A) 1989

Charlotte Rae

as Annie Hacker in Yes, Mr President (Yes Minister U.S.A) 1989

Harry Morgan

as Arnold Robinson in Yes, Mr President (Yes Minister U.S.A) 1989

Jon Stewart

as Writer in Yes, Mr President (Yes Minister U.S.A) 1989

George Wendt

as Jim Hacker in Yes, Mr President (Yes Minister U.S.A) 1989

Max Wright

as Bernard Woolley in Yes, Mr President (Yes Minister U.S.A) 1989

John Hillerman

as Humphrey Appleby in Yes, Mr President (Yes Minister U.S.A) 1989

Nathan Lane

as James Buchanan in US Presidents

Bryan Cranston

as Ulysses S. Grant in US Presidents

Edith Wilson

as Famous Figures in Famouse People Who Need Biopics

Richard E. Grant

as James Madison in US Presidents

Bryan Cranston

as Dwight D. Eisenhower in US Presidents