Norma MacMillan (September 15, 1921 – March 16, 2001) was a Canadian actress, best known for voicing numerous characters in animation and claymation, including Casper the Friendly Ghost on The New Casper Cartoon Show, Gumby on The Gumby Show, Sweet Polly Purebred on Underdog, and Davey on Davey and Goliath.

[1][2] In 1954, MacMillan, her husband and his business partner Stuart Baker, set out for Toronto where she began landing work voicing children's roles for the Canadian Broadcasting Corporation.

[3] After her husband and she moved to New York, MacMillan lent her voice talents to numerous roles; as "Casper the Friendly Ghost" on The New Casper Cartoon Show, as "Gumby" on The Gumby Show, as "Sweet Polly Purebred" in the Underdog cartoons, and as "Davey" on Seasons 4-5 of the claymation series Davey and Goliath among others.

[3][1][2] In 1991, she provided narration for Saban Entertainment's comedic "Sugar & Spice" subset of Funky Fables cartoons, which included The Ugly Duckling, Thumbelina, Heidi, Alice in Wonderland, The Wizard of Oz, Snow White and the Seven Dwarfs, Cinderella, and The Secret Garden.

Her on-screen work included guest-starring roles on such television shows as Columbo, She's the Sheriff, Webster and Thirtysomething.