Cesar Millan

Himself

Daisy Fuentes

Self

Virginia Madsen

Self - Owner of Spike

Patti LaBelle

Self - Owner of Nasir

Jada Pinkett Smith

Self - Owner of Rocco

Ed McMahon

Self

Kathy Griffin

Self

Rich Mercer

Self - Location Manager / Dog Handler

Todd Henderson

Self - Segment Producer

Jillian Michaels

Self - Owner of Seven

Michael B. Seligman

Self - Owner of Slick

Robert B. Weide

Self - Owner of Jake

Chantel Valdivieso

Self - Owner of King

Sharon Noble

Self - Owner of Julius

Jacklyn Zeman

Self - Owner of Goldie

Scott Lincoln

Self - Owner of Jonbee

Denise Richards

Self - Owner of Lucy, Hank, & Betty

Jeanie Buss

Self - Owner of Princess / L.A. Lakers Owner

Phil Jackson

Self - Jeanie's Boyfriend / L.A. Lakers Coach

Clint Rowe

Self - Animal Stars Trainer

John Grogan

Self - Owner of Gracie

Downtown Julie Brown

Self - Owner of Candy

Michael Damian

Self - Owner of Bella & Fofo

Janeen Damian

Self - Owner of Bella & Fofo

Mike White

Self - Owner of Tootsie & Ginger / Writer & Director of "Year of the Dog"

Molly Shannon

Peggy in "Year of the Dog" (archive footage)

Jennifer Lee Pryor

Self - Owner of Indigo & Pryor's Planet Dog Rescue

Eden Espinosa

Self - Owner of Owen

Pete Wentz

Self - Owner of Hemingway

Ashlee Simpson

Self - Owner of Hemingway