Paul Muni hired a Mexican man as chauffeur to study his accent and mannerisms in preparation for this role.
Nella Walker is on record for the part of Mrs. Elwell, but she did not appear in the film. 'Henry O'Neill' is on record for the part of Mr. Elwell, but he played the role of Attorney J.L. Chase. A modern source lists Eddie Shubert as Marketman, but he was not seen in the print.
The footage of the opening street scene of the border town was later re-used as the opening scene of the Mexican town in Code of the Secret Service. A short section of the same scene was also used during the opening Mexicali sequence in The Hitch-Hiker.