|Charles Laughton||Sir Humphrey Pengallan|
|Leslie Banks||Joss Merlyn|
|Robert Newton||James ``Jem'' Trehearne|
|Wylie Watson||Salvation Watkins|
|Marie Ney||Patience Merlyn|
|Morland Graham||Sea Lawyer Sydney|
|Stephen Haggard||The boy|
After the death of her mother, young Mary travels to the Cornish coast seeking her Aunt Patience . Stranded on a windswept, isolated road, Mary meets Humphrey Pengallan, who kindly escorts her to the Jamaica Inn. There, Mary meets her aunt and bullying uncle, Merlyn Joss -- who secretly leads a band of pirates that pilfers the goods from wrecked ships. Suspicious, Mary turns to Pengallan for help, only to discover another dark secret.