Bill Hunt, a freelance PRO and web-designer, will start in January. He has previously worked the agencies Brando, Cohn & Wolfe, and Hill & Knowlton.
Although Biss Lancaster's team includes staff members with digital skills, until now it has had to outsource its digital work to other companies.
At present Hunt will work with the existing Biss Lancaster team but the agency said it could recruit more people as needed.
Hunt, who will report to new MD Holly Ward, will be responsible for integrating online PR strategies into new business development and identifying opportunities for digital with existing clients.
Hunt's hire is part of an agency drive to boost digital business.