The Joker's Uncontrollable Laughing Is Actually a Real-Life Medical Condition The script never names the Joker's disorder, but it's based on pseudobulbar affect. By Philip Ellis Published: Oct 04 ...

The condition causes bursts of uncontrollable laughing or crying and usually manifests in people who have ALS, MS, neurological conditions or traumatic brain injuries, according to Mayo Clinic.

The film, starring Joaquin Phoenix as Batman's archnemesis, offers a new twist on the character by taking inspiration from a real-life mental illness ...

Pulling off the Joker’s voice was so challenging that Kevin Michael Richardson nearly fainted several times while working on “The Batman” TV series from 2004 to 2008. “I remember laughing ...