[4] She appeared in such feature films as The Incredible Mr. Limpet, American Gigolo, Sixteen Candles, Grandview, U.S.A., Summer Lovers, and Palm Springs Weekend.

[5][6] She made guest appearances on such television shows as The Lucy Show, Here's Lucy, Darkroom, Knight Rider, Emergency!, Magnum, P.I., McMillan and Wife, Murder, She Wrote, Dynasty, Charlie's Angels, Cagney & Lacey, Grey's Anatomy, and a starring role in a Season 4 episode of Hart to Hart.

[5][6] Cook starred in the animated Walt Disney Pictures film Home on the Range voicing Pearl Gesner.

LA Weekly described the show as “a heartfelt tribute” that explored themes of love, loss, and transformation while honoring Cook's enduring legacy.

[4] On September 9, 2018, a reporter from TMZ approached Cook to ask her opinion about an actor who grabbed a Trump 2020 sign from someone who had held it up in the audience during a performance of the musical Frozen.