Sarge D. Fan (or simply Sarge Fan) is a male customer who made his first appearance in Papa's Pizzeria.
This mischievous customer is absolutely obsessed with Sarge and can always be found parading around town in his green army helmet. With the help of Quinn, he had his name legally changed to Sarge D. Fan. When Sarge Fan heard of Papa's Freezeria opening up, he personally petitioned to have his favorite candy, Gummy Onions, on the menu.
Sarge Fan wears the same hat as Sarge that covers his eyes. He wears a purple polo undershirt and a black overshirt with a picture of Sarge on it, and pale purple bottoms with a green belt. He wears brown shoes with green laces. He was revealed to be bald, as seen on the glitch below.
- He often order Onions, Blueberries, Blackberries, and Purple Burple in games that involve sweets.
- He is unlocked along with Wild Onion Sauce 4 times in a row in Papa's Wingeria, Hot Doggeria, Wingeria HD, and Cheeseria.
- Both he and Radlynn (both villain fans, respectively) order Veggie Dog in Hot Doggeria.
- In Papa Louie 2: When Burgers Attack!, the badge "Onionception" is earned when Sarge is defeated as him.
- He was referred to as "SargeFan!" in Papa's Pizzeria and Papa's Burgeria, then as "Sarge Fan!" from Papa's Taco Mia! to Papa's Hot Doggeria, and finally "Sarge Fan" from Papa's Cupcakeria onward.
- His Wingeria order combination is similar to that of Gremmie's.
- His Style B in Papa Louie 2 is available to buy in various gamerias.
- In Papa's Pizzeria, he is the only customer that orders 12 of something (12 onions).
- In Papa's Pastaria, he is the only customer to order 8 of something (8 onions).
- His favorite color is purple as it is seen in most of his orders.
- He is the first Papa's Pizzeria debutant to have a flipdeck.
- Starting from Papa's Hot Doggeria, he is unlocked with an onion-related ingredient.