Byrdsfan1948 Russian just his accent made me feel so inferior.
Cohen had a Brooklyn accent, but Max Schiffer had a strong German accent.
The school had lots of foreign profs, although my advisor was California born. Ron Bracewell (solar radio-astronomer), also in the Radioscience Labs, was an Aussie with a strong Aussie accent. I took a Fourier Transform and an Interferometry class from him -- both still incredibly useful in my hobbies.
The CS department was different, mostly local borns. Don Knuth is native born (I took a "Concrete Math" class from him -- no, not mathematics of concrete, but basically numerically based math) in the CS department from him.
I still have my "Knuth Check" -- http://www.w7ay.net/chen/Others/More/knuth.html . Squirreled away in a folder so it does not fade in sunlight (many people frame them :-).
Chen