Mary Long (born August 16, 1951) is a Canadian actress and voice actress. She was the last of three actors to play Maggie Muggins in the popular TV series that ran from 1955 to 1962.

Crossroad Springs

Hello Kitty: Mom Loves Me After All

Twitch City

Hello Kitty: Santa's Missing Hat

The New Alfred Hitchcock Presents

High School

My Pet Monster

Love at Look Lodge

C.O.P.S.

Fit for a Prince

Torn Between Two Lovers

A Veteran's Christmas

Very, Very, Valentine

Cider and Sunsets

The Romanoffs

My Name Is Tanino

12 Dates of Christmas

Christmas Next Door

Love in Wolf Creek

Abracadabra and a Christmas Miracle

Class of '44

Beverly Hills Teens

Christmas in Wolf Creek

Come Dance with Me

Christmas at Maple Creek

Only God Knows

The Evil Twin

The Life Before This

A Taste Of Jupiter

Rapture

Boy Meets Girl

All My Sons

The Comedy Factory