Suggestions by @jdeav

Richard Steven Horvitz

as Zim in Dimensions

Phil LaMarr

as Wilt in Dimensions

Cathy Weseluck

as Spike in Dimensions

Zachary Gordon

as Greg Heffley in Dimensions

Keith Ferguson

as Bloo in Dimensions

Sean Marquette

as Mac in Dimensions

Abby Ryder Fortson

as Patty Farrell in Diary Of A Wimpy Kid Live Action Fan Casting

Robert Downey Jr.

as Principal Roy in Diary Of A Wimpy Kid Live Action Fan Casting

Audrey Grace Marshall

as Holly Hills in Diary Of A Wimpy Kid Live Action Fan Casting

Finn Wolfhard

as Fregley in Diary Of A Wimpy Kid Live Action Fan Casting

Emily Blunt

as Susan Heffley in Diary Of A Wimpy Kid Live Action Fan Casting

John Krasinski

as Frank Heffley in Diary Of A Wimpy Kid Live Action Fan Casting

Jax Laucius

as Manny Heffley in Diary Of A Wimpy Kid Live Action Fan Casting

Tom Holland

as Rodrick Heffley in Diary Of A Wimpy Kid Live Action Fan Casting

Jeremy Ray Taylor

as Rowley Jefferson in Diary Of A Wimpy Kid Live Action Fan Casting

Jaeden Martell

as Greg Heffley in Diary Of A Wimpy Kid Live Action Fan Casting

Lance Thirtyacre

as Bunghole in SML Movie: Jeffy's Foster Home

Lance Thirtyacre

as Face Eater in SML Movie: Jeffy's Foster Home

Sean Marquette

as Mac in SML Movie: Jeffy's Foster Home

Candi Milo

as Coco in SML Movie: Jeffy's Foster Home