Comcast Corporation Names Marlene S. Dooner Senior Vice President of Investor Relations and D’arcy F. Rudnay Senior Vice President of Corporate Communications

Philadelphia, PA.- Comcast Corporation (Nasdaq: CMCSA, CMCSK), the country’s leading cable entertainment and communications company, today announced that Marlene S. Dooner has been promoted to Senior Vice President of Investor Relations and D’Arcy F. Rudnay has been promoted to Senior Vice President of Corporate Communications.

Ms. Dooner, who joined Comcast in 1995 as Director of Investor Relations and most recently served as Vice President of Investor Relations, is responsible for developing and managing relationships with the investment community and shareholders. Ms. Rudnay joined Comcast in December 2003 as Vice President of Corporate Communications, and is responsible for strategic communications planning and facilitating unified and consistent communications for the entire Comcast family of companies.

“Marlene and D’Arcy do a phenomenal job of articulating Comcast’s tremendous growth, technology and innovation to our shareholders, customers, employees and policymakers,” said Brian L. Roberts, Chairman and CEO of Comcast Corporation. “Their counsel and expertise have been critical ingredients in our success. We look forward to continuing to rely on D’Arcy and Marlene as we work to effectively communicate our story.”

Ms. Dooner serves on the Board of Visitors of the Haub School of Business at St. Joseph’s University and on the Board of Directors of Philadelphia Hospitality. In 2005, she received the Woman to Watch Accolade from Women in Cable and Telecommunications Foundation (WICT), which recognizes outstanding achievements and the highest level of commitment to developing women leaders. She earned a BA in Economics from St. Joseph’s University and a MS in Finance from Drexel University. She and her husband live in Bryn Mawr.

Ms. Rudnay is a member of the boards of the Philadelphia Convention & Visitors Bureau and the Steppingstone Foundation. In 2005 she was a recipient of the Philadelphia Business Journal’s “Women of Distinction” award and Profiles in Diversity Journal’s “Women Worth Watching” award. Ms. Rudnay earned a BA from Trinity College and an MS from the University of Pennsylvania. She resides in Radnor, Pennsylvania, with her husband and two daughters.