This is nearly impossible to answer without any clarification.
As far as I know, the first country to use a "cent" (as in, just plain cent and not the translation of cent in say, French) is the US which featured a personification of Liberty on all cents up until 1909 when it was replaced by Lincoln. But, naturally that is not a real person.
Most likely the first instance of a real person on a "cent" (again, just a plain cent and not the transliteration of a cent) would be Queen Victoria since she reigned in Canada which had a cent.
Since 1938, the U.S. five cent coin (or nickel) has featured President Thomas Jefferson.
The Superb Lyrebird is featured on the reverse of all Australian 10 cent coins from the first issue in 1966 to present. [It has an amazing ablity to mimic the sounds of other animals and even machinery.]
The obverse of the American five-cent coin, minted in its current form since 1938, has featured a picture of Thomas Jefferson on the obverse.
Such a coin does not exist. The Tuatara was featured on the reverse of the New Zealand 5 cent coin which was withdrawn from circulation and demonetised in 2006.
Such a coin does not exist. The first Australian 2 cent coin was issued in 1966.
There were no US coins struck in 1776 that were official authorized coins. The first coin struck by the Continental Congress was the Fugio Cent which wouldn't be struck until 1787 and even then featured no depiction of Liberty on it. The first US coin with a personification of Liberty on it was the Chain Cent first struck in 1793, many years after the War of American Independence
Such a coin does not exist. The first Australian 10 cent coin was issued in 1966.
There were no US coins struck in 1776 that were official authorized coins. The first coin struck by the Continental Congress was the Fugio Cent which wouldn't be struck until 1787 and even then featured no depiction of Liberty on it. The first US coin with a personification of Liberty on it was the Chain Cent first struck in 1793, many years after the War of American Independence.
Such a coin does not exist. The Australian 2 cent coin was first issued in February 1966.
The penny coin which was worth a cent
The now demonetised New Zealand 5 cent coin featured the "Tuatara", the last surviving member of an otherwise extinct family of reptiles indigenous to New Zealand.
Such a coin does not exist. The New Zealand 1 cent coin was first issued in 1967.