What is Valkyrae’s real name?

Valkyrae

Why is he called disguised toast?

Wang’s username is a reference to a Hearthstone card, SI:7 Agent. When played in-game, the voice line for the card reads “This guy’s toast”. Comedian Conan O’Brien called it “the greatest name in gaming history”.

Does toast have any siblings?

🤗 jenny (toast’s sister) was so nice!!

Are Sykkuno and toast brothers?

Toast and Sykkuno are brothers.