Who was on the 1 million dollar bill?

Answer 1

There is no such thing and never has been (in US currency, at least). The highest legitimate US bill denomination ever was the $100,000 bill which featured Woodrow Wilson. However, it was never actually circulated, and was used strictly for government transactions. The reverse of the bill was printed with bright orange ink instead of the green used for other bills. The highest denomination not used strictly by the federal government for internal transactions was the $10,000 bill featuring Salmon P. Chase, Secretary of the Treasury at the time the first US federal currency was issued. It was primarily used for transactions between banks rather than by private individuals.
The highest denomination currently being printed is the $100 bill; large transactions are now typically handled electronically.

Answer 2

There is no 1 million dollar bill. The highest denomination of currency ever printed by the United States was the $100,000 bill, but it was only used for interbank transactions and never issued to the public.