It's Agrippa, full name Connelly Agrippa. This is one of the few cards Ron is missing when he eats the Chocolate Frog set.

Those who make it onto the Chocolate Frog are usually wizards of note, like Dumbledore. Then Agrippa's appearances in Harry Potter are actually few and far between, can't say they're few and far between, or at least no different than the backdrop. The synopsis is also pitifully scarce, except to say that he's a famous wizard who was thrown in jail by muggles for his books, because they were considered evil.

Chocolate Frogs are a popular candy in the wizarding world that comes with wizard cards inside. The cards introduce famous wizards and their deeds. Because the chocolate is enchanted, it takes the shape of a frog. When encountering a dementor, eating a chocolate frog will help restore your strength. Be careful when you unwrap the bag and watch out for the frog jumping away.

Chocolate Frog Wizard Card

The Chocolate Frog Wizard Card is one of the most popular cards collected by wizards in the Wizarding World, just like the little toys in the snack bags when we were kids.

To get on a wizard card in the Wizarding World you generally have to be a wizard with a reputation, and of course, that reputation can be good or bad.

Just as Harry and the gang discovered clues to the Sorcerer's Stone through Dumbledore's wizard card in The Sorcerer's Stone, there is, in fact, a lot of interesting information about the wizarding world that we can learn through the other wizard cards on the card.