Greg Heffley (voice)

Rowley Jefferson (voice)

Rodrick Heffley (voice)

Susan Heffley (voice)

Frank Heffley (voice)

Manny (voice)

Fregley (voice)

Braces Girl (voice)

Teen Driver (voice)

Teen with Mullet (voice)

Homeroom Teacher (voice)

Mrs. Fregley (voice)

Curly-Haired Girl (voice)

Charlie Davies (voice)

Mr. Underwood (voice)

Mr. Humphreys (voice)

Chirag Gupta (voice)

Holly Hills’s Friend (voice)

Joshie (voice)

Random Boy (voice)

Wizard (voice)

Hulking Teen (voice)

Teen with Baseball Hat (voice)

Girl with Ponytail (voice)

Blonde-Haired Girl (voice)