- Talented linguist and astute mimic.
- Spoke Hungarian, French, German, English, Italian and Russian.
- While in high school, he worked as a Macy's toy salesman and commercial artist.
- Graduated high school at the age of 14.
- Won a scholarship to the College of Physicians and Surgeons at Columbia University, but turned it down to pursue an acting career.
- Was a leading member of the 1936 American Olympic fencing team, but abandoned the team prior to the games in order to take a role in theater.
- Known for his role of Chopin in A Song to Remember (1945).
- 1945, Oscar — Best Performance by an Actor in a Leading Role: Nominee
- Vojtech Weisz — Father
- Pascal Franchot Tone — Stepson
- Jean Wallace — Ex-wife
- Renée Mary Vid — Mother
- Cornel Wallace Wilde Jr. — Son
- Patricia Knight — Ex-wife
- Thomas Jefferson Tone — Stepson
- Wendy Wilde — Daughter
- City College of the City University of New York, New York, New York, United States (Pre-med)