Feta Cheese

Background
Feta was mostly a normal cheese, but he would often misunderstand things said to him. This would eventually lead to him becoming the first mold and starting the rise of the mold.

Pool Party
Feta gets invited to a pool party by his friends and gets all his pools stuff, but it turns out it was a billiard party.

No Shoes No Shirt No Service
After he leaves the pool party he goes to Generic Fast Food Restaurant, but he gets yelled at for not having a shirt or shoes. He comes back with shoes and a shirt but no pants for an EPIC PRANK! But the undercover cop shoots him with a dart for not having pants. She gives him the burger he ordered anyways.

Blue Cheese, who was working for the Grim Reaper, had

laced his burger with mold to spread it. After Feta ate the burger he turned into the first mold.

Rise Of The Mold Pilot Episode
Feta is the first mold we see who tries to attack Colby Jack. He fails when Colby throws his helmet to distract him. He is not to be confused with the mold we see downstairs who is eventually killed by Swiss.

Hiatus
After mold 2 is killed by Swiss, he decides to go into hiding. He hides for 2 whole years until he decides to attempt another attack.

Rise Of The Mold S1
He attacks Colby Jack and Swiss Cheese after the Hiatus, he gets defeated and Swiss gives an antidote to turn him back to cheese, Swiss screams or something then they just leave Feta on the floor unconscious. Then the mold that was on him comes off and becomes an alien mold man. Later he goes to a bar with Colby Jack, where afterwards he turns into Death and captures him.