Main Characters:

Phantom Strider

His real name being Josh Strider, he's the owner of the channel and hosts every video.

Beware the Nice Ones: He's a very affable individual, however, pushing his buttons will lead to a "The Reason You Suck" Speech.
Caustic Critic: Not as much as other examples, as he tries to give a reasonable and well-balanced review, while still being entertaining.
Laser Sword: Uses a lightsaber.
Last-Name Basis: He's often addressed to in his own videos by his last name.
Nice Guy: Strider expects criticisms and disagreements of his opinions and is always open to help others with their problems.
Trademark Favorite Food: Bananas.

Boo

Strider's channel mascot.

Friendly Ghost: He doesn't have a mean bone in his body... if he had a body; that is.
Living Prop: According to Strider himself, Boo doesn't do much.

Recurring Characters:

Dark Strider

Strider's "evil" side.

Anti-Hero: Inspired from characters like Batman.
Everyone Has Standards: Dark Strider shows special disdain for his last entry on the "Top 5 Worst Forgotten Cartoons". Especially when the main character kills a bunch of children for no reason.
- He also tears into the fake Peppa Pig episodes throughout the "Banned Peppa Pig Episodes."
- Dark Strider is horrified when he gets the last entry for the "Darkest South Park Episodes." Good thing that job to review it goes to someone else.
Large Ham: One word: "OCTAGON!"
Superpowered Evil Side: Well, not really, it's not known if he actually has superpowers. And he hasn't really done anything evil.
- Heck in his Top 10 Darkest Youtube/Web Cartoons list he even saves Boo from some certain killer robots while trying to host the list.

Raz

Strider's real life brother.

Cool Big Bro: The two of them get along pretty well, since he appears in nearly all of his Lets Plays.
The Faceless: To the point where a fancomic poked fun at it, but Raz's face wasn't shown until he made a cameo in "Worst Kids Shows".

Anime America aka Robyn

Channel owner and host of Anime America, free to help Strider out whenever he needs to tackle anime.

The Nostalgia Critic

Professional internet critic, you should probably know him by now. If you don't, he remembers it, so YOU don't have to.

Special Guest: Appears for some episodes to discuss the "Worst Movies" and "Creepiest Animated Movies".
Thousand-Yard Stare: Has one, when both reach the Worst movie ever made...