Cary Grant as C.K. Dexter Haven

Katharine Hepburn as Tracy Lord

James Stewart as Macaulay 'Mike' Connor

Ruth Hussey as Elizabeth 'Liz' Imbrie

John Howard as George Kittredge

Roland Young as Uncle Willie

John Halliday as Seth Lord

Mary Nash as Margaret Lord

Virginia Weidler as Dinah Lord

Henry Daniell as Sidney Kidd

Lionel Pape as Edward

Rex Evans as Thomas

King Baggot as Wedding Guest (uncredited)

Hillary Brooke as Main Line Society Woman (uncredited)

Veda Buckland as Elsie (uncredited)

Lita Chevret as Manicurist (uncredited)

Russ Clark as John the Chauffeur (uncredited)

David Clyde as Mac (uncredited)

Robert De Bruce as Dr. Parsons (uncredited)

Dorothy Fay as Main Line Society Woman (uncredited)

Claude King as Uncle Willie's Butler (uncredited)

Eric Mayne as Wedding Guest (uncredited)

Florine McKinney as Main Line Society Woman (uncredited)

Lee Phelps as Bartender (uncredited)

Hilda Plowright as Librarian (uncredited)

Helene Reynolds as Main Line Society Woman (uncredited)

Mildred Shay as Main Line Society Woman (uncredited)

Joseph Sweeney as Butler (uncredited)

Sally Cleaves as Party Guest (uncredited)

Oliver Cross as Wedding Guest (uncredited)

Dick Gordon as Wedding Guest (uncredited)

Sam Harris as Party Guest (uncredited)

Frank McLure as Wedding Guest (uncredited)

Paul Power as Wedding Guest (uncredited)

Ellinor Vanderveer as Party Guest (uncredited)

Florence Wix as Party Guest (uncredited)