Forth, BASIC, Z-80/8080 assembler, TOPS-20 assembler, 6502 assembler, Pascal, Fortran, COBOL, MUMPS, Perl, PHP, a little Ruby, C and Javascript and probably some others lost to the ages.

I code for a living, so I guess I'm a "professional" programmer.

Mumps was my favorite, but only for it's unique data storage. The language itself sucked.