Disney president and CEO Bob Iger said, "I was deeply saddened to learn of the passing of Card Walker. Card was instrumental in keeping Disney strong and growing in the critical years that followed the passing of founders Walt and Roy Disney. There is little question that, were it not for Card Walker's vision and leadership, Disney would not be what it is today."

Walker rose through the ranks at Disney, starting in the mailroom in 1938 and eventually becoming executive VP and COO following the death of Walt Disney. Walker worked closely with Walt and Roy Disney on projects, such as It's a Small World, Meet Mr. Lincoln, Pirates of the Caribbean, the Haunted Mansion, 101 Dalmatians, The Jungle Book, Mary Poppins and the purchase and development of the 28,000 acres in Central Florida that became Walt Disney World.

In 1971, he was named president of the company, in 1976, he added the duties of chief executive officer and, in 1980, he was elected chairman of the board. Under his leadership, the company expanded with such major projects as the development of Epcot at Walt Disney World, Tokyo Disneyland and the creation of the Disney Channel in the then-nascent cable industry.

Earlier in his career, Walker's duties included work in the camera and story departments as unit manager on short subjects, after which he moved into advertising and sales, rising to become the company's vice president of marketing. In 1960, he was elected to Disney's board of directors and served on its three-man executive committee. He retired as CEO and chairman in 1983, but continued to serve as a consultant until 1990.

Disney former CEO Michael Eisner says, "Card was a predecessor of mine as CEO and I was privileged to consult with him throughout much of my tenure at the company. Thanks to his deep understanding of the company and its founders, talking to Card was the next best thing to talking to Walt himself. Card successfully steered this company through a challenging time of transition, establishing an incredibly strong base for success on which Disney continues to build."