Carriage Driver (male): AWA..!! 

Carriage Driver 2 (male): Hii.. Hiik..! S-save me...

probably both of them: AAAAAKK!!!!!

Also they probably both died. So they won't be showing up again. Chapter 1.

Crowd People: *mutter, mutter, incoherent muttering*

Crowd People: It's the Black Magician! | The famous... | ... Is he coming back from his mission? | Kyaa I want to try talking to him~ | Wow. | *more muttering*

Chapter 2. Before Black Magician arrived and after.

Crowd: The association...? | A beast's ears and tail... there's only one famous magician with those... | Who was it? I knew he was... | Who?

Crowd Person: Ah, I remember! The association's loyal dog, Lanoste's [Dog]!

Chapter 4: This evil laughing magic stone stealer got injured, and the crowd recognizes the magician!

Bullies: Huh? | What? | There's a magic circle drawn on it. | He's staring at us. | ... What's up with that kid? | What's up, kid? | A you lost??

Later.

One Bully: Isn't it your dream to become a magician, kid? I know quite a lot about magicians. Want me to teach you? Of course... It won't be free.

(at least one will require cursing later as they get defeated)

Episode 8, bullies pick up the magic circle sheet that Rood dropped, and they meet. There's four of them. They look male but you never know.