Jack Nicholson

Warren Schmidt

Kathy Bates

Roberta Hertzel

Hope Davis

Jeannie Schmidt

Dermot Mulroney

Randall Hertzel

June Squibb

Helen Schmidt

Howard Hesseman

Larry Hertzel

Harry Groener

John Rusk

Connie Ray

Vicki Rusk

Len Cariou

Ray Nichols

Mark Venhuizen

Duncan Hertzel

Cheryl Hamada

Saundra

Phil Reeves

Minister in Denver

Matt Winston

Gary Nordin - Warren's Replacement

James M. Connor

Randall's Best Man