Who did narration at end of moneyball?

Actor Ron Canada

The greatest unsung cameo in Moneyball surely has to belong to legendary character actor Ron Canada, who makes an uncredited voice cameo in the film as a disembodied announcer's voice who sharply criticizes Beane's ground-breaking approach to team selection.

Originally Canada auditioned as a soundalike for iconic Hall of Famer and commentator Joe Morgan, who strongly opposed Beane's methods, and the actor ended up working with Miller over three recording sessions to produce authentic-sounding commentary that was skeptical of Beane's approach.

Canada's put-downs were only featured briefly in the final movie, primarily following the A's climactic defeat, though potently confirmed the sentiment of many "old-guard" members of the sport.

Despite the brevity of his ultimate role, Canada said he was glad to have been involved with "a sports film for grownups."