Bentley Griffin
as Lincoln Loud (voice)

Alex Cazares
as Myrtle (voice)

Piotr Michael
as Pop Pop (voice)

Jaden White
as Clyde McBride (voice)

Jill Talley
as Rita Loud (voice)

Brian Stepanek
as Lynn Loud Sr. (voice)

Catherine Taber
as Lori (voice)

Liliana Mumy
as Leni (voice)