Some further character explanation because I feel like it:

Rascal Pizza (left):

Rascal (First name) Pizza (Last name) is the mascot created by the pizza company by the same name.

It is a nervous purple/blue rat that goes through silly adventures with the only purpose of achieving the highest quality ingredients to cook the best pizza the customers could ask for, often cooking it in unconventional ways, the most popular being in a pot.

The company took a massive hit in sales around 2017, and, after some negotiation, CON agreed to acquire them.

Rascal Pizza can be spotted as the set place for some F&B Show episodes, most notably in the Season 1 Episode 7 "The Golden Pizza".

Ever since CONs purchase, Rascal Pizza has remained afloat, and have even released a variety of free quality videogames to bring more eyes into the pizzeria, most notably "Rascal Pizza in The Quest for the Perfect Cheese".

Purply Boy (right):

Contrary to his name, he is not a boy. He is a fully grown up man. Everytime Rafa was asked why his name still refers to him as a "Boy", he either dismissed it or laughed about it.

Purply Boy is a very infrequent antagonist to RFreddy in the YouTube video series. Originally appearing in the video "RFreddy and the Dangers of the color Purple", Purply Boy has a very aggressive personality and is quick to lose his temper.

He is not the most popular nor most common antagonist to RFreddy, most likely due to his non-comedic tone of dialogue, which would get boring after a while.

Purply Boy is also canonically friends with RealPoxy77, as seen in the joke video "RealPoxy77 sings Ballin'", which was confirmed canon by a pinned comment from Rafa himself.

Rafa has jokingly referred to Purply Boy as "The true face of everything shit", while also saying he does agree with some of the criticisms he has made in some videos.

It is also noteworthy that Purply Boy has yet to appear in any way shape or form in any piece of media outside from YouTube (i.e. F&B, Merchandising, the games...)