Return from Witch Mountain
movie

Sinister forces from this world against two young space travellers from another.
Released March 10, 1978
Overview
Tony and Tia are other-worldly twins endowed with telekinesis. When their Uncle Bene drops them off in Los Angeles for an earthbound vacation, a display of their supernatural skill catches the eye of the nefarious Dr. Gannon and his partner in crime, Letha, who see rich possibilities in harnessing the children's gifts. They kidnap Tony, and Tia gives chase only to find Gannon is using her brother's powers against her.
Cast

Bette Davis
as
Letha Wedge

Christopher Lee
as
Victor Gannon

Kim Richards
as
Tia

Ike Eisenmann
as
Tony

Jack Soo
as
Mr. "Yo-Yo" Yokomoto

Anthony James
as
Sickle

Richard Bakalyan
as
Eddie

Ward Costello
as
Mr. Clearcole

Christian Juttner
as
Dazzler

Brad Savage
as
Muscles
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Poindexter Yothers
as
Crusher
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Jeffrey Jacquet
as
Rocky
Crew
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Bob Bring
as
Editor
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Danny Lee
as
Special Effects

Jerome Courtland
as
Producer
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John B. Mansbridge
as
Art Direction
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Herb Taylor
as
Sound Supervisor
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Jack Senter
as
Art Direction
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Eustace Lycett
as
Special Effects
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Art Cruickshank
as
Special Effects
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Malcolm Marmorstein
as
Screenplay

John Hough
as
Director

Lalo Schifrin
as
Original Music Composer
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Frank V. Phillips
as
Director of Photography