Hal is a Koopa Troopa and Jeff is a Goomba. They come from the sprite series "Bowser's Kingdom". They are first featured in Episode 7. They also make an appearance in a scene fighting.
In Bowser's Kingdom and Super Mario Bros. Z, Hal is voiced by creator of the Bowser's Kingdom series araskin500 and Jeff is voiced by pthouse.
They only appeared to provide comic relief to the series, should the episode get boring. They were exploring the Pipe Maze on the outside when Wario and Waluigi, who exploded out of a pipe, landed on them.
They walk into the maze. Hal looks at a map, then looks at Jeff.
Hal: Great going! We're totally f***ing lost!
Jeff': What are you talking about? You're the one with the map!
Hal: Yeah, but it was your idea for coming here in the first f***ing place! (stores map away)
(A noise is heard, both look up in the air)
Jeff: Hey, what's that?
Hal: Hmm. I don't know. It kinda looks like...
(Wario and Waluigi land on Hal and Jeff.)
Bowser's Kingdom Tie-InEdit
Hal and Jeff appear in a small episode of Bowser's Kingdom, in which they are sucked into another dimension, finding a Chaos Emerald. Jeff doesn't give the Emerald to Hal, swallowing it instead, gaining a powerup. Mecha Sonic then appears.
Jeff and Hal are transported through a portal into another dimension.
Jeff: Woah! Where the hell are we?
Hal: We must be in some sort of alternate dimension. I landed on something sharp.
Hal picks up the Chaos Emerald.
Jeff: Wow! What is that? It looks like candy. Is that candy? I want candy.
Mecha Sonic lands and grabs Hal.
Jeff: S***! Who the f*** is that?
Mecha Sonic: Give me the Chaos Emerald, you pathetic creatures!
Jeff: Wait, are you talking about the candy? Well, it's my candy.
Mecha Sonic: Well then I will just have to destroy you. Prepare to die!
Mecha Sonic starts kicking Hal through the air and slams him to the ground.
Mecha Sonic: How pathetic.
Mecha Sonic is about to kill Hal, but Jeff eats the emerald.
Jeff: THIS IS DELICIOUS!
Jeff turns into a Goomba with yellow hair. He gives Mecha Sonic a good beating until Mecha Sonic fires a beam, killing Jeff.
Mecha Sonic: Hmm, that was all too easy. Farewall, douchebags.