
A crippled puppeteer saves an abused child and molds him into a brilliant ballet dancer. As the dancer matures, he falls passionately for a young woman who also enchants the puppeteer, sparking a volatile love triangle. The story delves into cruel passions, mad longings, and the monstrous grip each character has on the others’ souls.
Does The Mad Genius have end credit scenes?
No!
The Mad Genius does not have end credit scenes. You can leave when the credits roll.
Explore the complete cast of The Mad Genius, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.

André Luguet
Count Robert Renaud

Boris Karloff
Fedor's Father (uncredited)

Frankie Darro
Fedor as a Boy

Luis Alberni
Sergei Bankieff

Donald Cook
Fedor Ivanoff

John Barrymore
Vladimar Ivan Tsarakov

Mae Madison
Olga Chekova (uncredited)

Walter Miller
Opera Spectator (uncredited)

Lee Moran
Montmartre Cabaret Director (uncredited)

Carmel Myers
Sonya Preskoya

Harry Wilson
Curtain Man (uncredited)

Marian Marsh
Nana Carlova

Charles Butterworth
Karimsky

Charles Brinley
Poster Hanger (uncredited)

Chester A. Bachman
Poster Hanger (uncredited)
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Read the complete plot summary of The Mad Genius, including all major events, twists, and the full ending explained in detail. Explore key characters, themes, hidden meanings, and everything you need to understand the story from beginning to end.
Vladimar Ivan Tsarakov, John Barrymore, is a crippled puppeteer who stubbornly believes he will never dance ballet. He latches onto a talented protégé, Fedor Ivanoff — Frankie Darro as a boy and Donald Cook as an adult — and shapes him into what he stubbornly insists will be the world’s greatest dancer. The film follows their intertwined fates as ambition, art, and desire collide.
Fedor’s heart is captured by Nana Carlova, the gifted dancer portrayed by Marian Marsh. Tsarakov’s fear that Nana’s influence could derail Fedor’s pristine technique drives him to manipulate both of them. He first tries to drive a wedge between the lovers by undermining Nana’s position in the troupe, and when that fails, he fires her from the company. Heartbreak lands hard in Paris, where Fedor and Nana escape the shadow of Tsarakov and seek new freedom together. Yet Tsarakov’s power reaches far beyond the stage: he has already blacklisted Fedor, denying him legitimate ballet opportunities and pushing him toward a life in a cabaret.
Desperate to reclaim his protégé’s career, Tsarakov offers a cruel bargain: Nana must leave Fedor and marry another man to secure Fedor’s return to the stage. Nana agrees, clinging to the hope that her choice will protect Fedor’s artistry. When Fedor returns, the reunion is cool and embittered; he is not ready to dance under Tsarakov’s conditions. Tsarakov escalates his threats, insisting he will kill Fedor if he refuses. The crisis spirals further when the ballet master, under the influence of drugs supplied by Tsarakov, turns on his master and kills Tsarakov instead. With the tyrant removed from the equation, Fedor and Nana are finally reunited, their bond tested and ultimately reaffirmed on the very opening night Tsarakov hoped to sabotage.
The film sits in dialogue with the period’s cinematic current: in the same year, John Barrymore had already played the title character in Svengali, a role that echoed the controlling power he embodies here, and Marian Marsh also features in that earlier story. This shared thread of control and passion threads through Tsarakov’s dominion over his protegé and Nana’s steadfast devotion to Fedor, underscoring a broader meditation on art, manipulation, and love.
In the end, the story resolves with the restoration of love and artistry separate from manipulation: Fedor resumes his rightful place as a dancer, Nana by his side, and the cycle of coercive control is broken by a pivotal, dramatic act that redefines what it means to be free in the world of ballet. A tale of ambition, heartbreak, and redemption, it invites viewers to consider how talent can triumph when those who guard it learn to trust again.

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