Lil works for the Legendre Company and causes Bill to divorce Irene and marry her. She has an affair with businessman Gaerste and uses him to force society to pay attention to her.

Jean Harlow
as Lillian 'Lil' / 'Red' Andrews Legendre

Chester Morris
as William 'Bill' / 'Willie' Legendre Jr.

Lewis Stone
as William 'Will' Legendre Sr.

Leila Hyams
as Irene 'Rene' Legendre

Una Merkel
as Sally

Henry Stephenson
as Charles B. 'Charlie' / 'C.B.' Gaerste

May Robson
as Aunt Jane

Charles Boyer
as Albert

Harvey Clark
as Uncle Fred

Henry Armetta
as Waiter Warning Bill of Lipstick (uncredited)
CinemaSerf
Jean Harlow is the ambitious "Lil". She takes a bit of an interest in her boss "Bill" (Chester Morris) whose marriage she sets out to destroy. He is a bit hapless, and though he genuinely loves his wife "Irene" (Leila Hyams) he is still played like a fiddle by his former assistant. Once she has achi...