
Acting
Barbara Feldon (born March 12, 1933) is an American character actress of stage who is primarily known for her roles on television. Her most prominent role was that of Agent 99 on the popular 1960s sitcom, Get Smart. She also worked as a model.
Description above from the Wikipedia article Barbara Feldon, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Classic TV Bloopers Uncensored
as Agent 99 (archive footage)

The Last Request
as Mom

NBC 75th Anniversary Special
as Self

Get Smart, Again!
as Agent 99

Children of Divorce
as Irene Hoffman

Before and After
as Penny

Sooner or Later
as Lois Walters

A Vacation in Hell
as Evelyn

A Guide for the Married Woman
as Maggie

No Deposit, No Return
as Carolyn Osborne

Emily of New Moon
as Madame Marlena · 1 ep.

Chicago Sons
as Connie · 1 ep.

Get Smart
as 99 · 1 ep.

Mad About You
as Diane 'Spy Girl' Caldwell · 1 ep.

The Dinosaurs!
as Narrator (voice) · 4 ep.

Hothouse
as Bea Shecter · 1 ep.

Reading Rainbow
as Self - Narrator (voice) · 1 ep.

Cheers
as Lauren Hudson · 1 ep.

Doctors' Hospital
1 ep.
The Dean Martin Comedy World
as Host · 1 ep.