Dirección: Robert Cormack
Antología musical animada compuesta por 10 fragmentos: "Los Guerrero y los de León", "Tarde Azul", "Cuando los gatos se juntan", "Tres palabras", "El gran valente", "Un sueño en silueta", "Pedro y el lobo", "Después que te fuiste", "Historia de un idilio" y "El ballenato que quiso cantar en la ópera".
Nelson Eddy
Narrator / Characters (segment "The Whale Who Wanted to Sing at the Met") (voice)
Dinah Shore
Self (voice)
Benny Goodman
Self (voice)
Jerry Colonna
Narrator (segment "Casey at the Bat") (voice)
Andy Russell
Self (voice)
Sterling Holloway
Narrator (segment "Peter and the Wolf") (voice)
Tatiana Riabouchinska
Silhouetted Dancer
David Lichine
Silhouetted Dancer
Patty Andrews
Andrews Sisters (singing voice) (uncredited)
Maxene Andrews
Andrews Sisters (singing voice) (uncredited)
Laverne Andrews
Andrews Sisters (singing voice) (uncredited)
Ken Darby
The King's Men / Choral Director (Ken Darby Chorus) (singing voice) (uncredited)
Nelson Eddy
Narrator / Characters (segment "The Whale Who Wanted to Sing at the Met") (voice)
Dinah Shore
Self (voice)
Benny Goodman
Self (voice)
Jerry Colonna
Narrator (segment "Casey at the Bat") (voice)
Andy Russell
Self (voice)
Sterling Holloway
Narrator (segment "Peter and the Wolf") (voice)
Tatiana Riabouchinska
Silhouetted Dancer
David Lichine
Silhouetted Dancer
Patty Andrews
Andrews Sisters (singing voice) (uncredited)
Maxene Andrews
Andrews Sisters (singing voice) (uncredited)
Laverne Andrews
Andrews Sisters (singing voice) (uncredited)
Ken Darby
The King's Men / Choral Director (Ken Darby Chorus) (singing voice) (uncredited)
Nelson Eddy
Narrator / Characters (segment "The Whale Who Wanted to Sing at the Met") (voice)
Dinah Shore
Self (voice)
Benny Goodman
Self (voice)
Jerry Colonna
Narrator (segment "Casey at the Bat") (voice)
Andy Russell
Self (voice)
Sterling Holloway
Narrator (segment "Peter and the Wolf") (voice)
Tatiana Riabouchinska
Silhouetted Dancer
David Lichine
Silhouetted Dancer
Patty Andrews
Andrews Sisters (singing voice) (uncredited)
Maxene Andrews
Andrews Sisters (singing voice) (uncredited)
Laverne Andrews
Andrews Sisters (singing voice) (uncredited)
Ken Darby
The King's Men / Choral Director (Ken Darby Chorus) (singing voice) (uncredited)