Roscoe Arbuckle
— Fatty
Minta Durfee
— Fatty's Sweetheart
Harry McCoy
— Fatty's Rival
Alice Davenport
— Party Hostess
Phyllis Allen
— Fatty's Mother
Glen Cavender
— Cop (uncredited)
Charley Chase
— Party Guest (uncredited)
Dixie Chene
— Party Guest (uncredited)
Edward F. Cline
— Doorman (uncredited)
Frank Opperman
— Clothing Store Operator (uncredited)
Bert Roach
— Party Guest (uncredited)
Al St. John
— Party Guest (uncredited)
Slim Summerville
— Cop (uncredited)