Ladd Ehlinger Jr. as A Square (voice)

Greg Trent as President Circle (voice)

Simon G. Hammond as A Sphere (voice)

Jeff Sanders as Cube Carlton (voice)

Chris Carter as King of Lineland (voice)

Ashley Blackwell as A Line (voice)

Denise Carter as (voice)

Juliana Carter as (voice)

Mark Carter as (voice)

Jacqueline Clift as (voice)

Thomas Colby as (voice)

Colin Duckworth as (voice)

Catherine Ehlinger as (voice)

Corin Ehlinger as (voice)

Karen Ehlinger as (voice)

Megan Ehlinger as (voice)

Perrin Ehlinger as (voice)

Oscar Gutierrez as (voice)

Raven Hood as (voice)

Michael Karle as (voice)

James Lee Kelley as (voice)

Chris Kolb as (voice)

Lauren Meigs as (voice)

Linda Meigs as (voice)

Matthew Meigs as (voice)

Lacon Mitchell as (voice)

Jorge J. Raub as (voice)

Jonathon Shoemaker as (voice)

Sean C. Spurlock as (voice)

Hal Stanford as (voice)

Bill Wells as (voice)