What was the name of the mysterious benefactor in “The Millionaire” (CBS, 1955-60)?

The mysterious man who gave away $1 million each week in “The Millionaire” (CBS, 1955-60) was named John Beresford Tipton.

He was never seen; his voice was provided by Paul Frees, who also provided the voice of Boris Badenov on “The Bullwinkle Show” (ABC, NBC, 1959-63).