[dinoparty]

Yes, his real (or original) name was Eugene Orowitz.

[TexasCajun]

Landon was born Eugene Maurice Orowitz in Forest Hills, a neighborhood of Queens, New York. Landon's father, Eli Maurice Orowitz, was a Jewish American actor and movie theater manager, and his mother, Kathleen Ignatius O’Neill, was an Irish American Roman Catholic dancer and comedienne.

I never knew Little Joe's real name.