Docs' last name was Brown. The dog "Einstein" was white,he had white hair - not brown hair! Just watch the original movie. JohnPs' avatar is what Einstein looked like. Gray,and white - not tan,or brown.What? Who said the Dog was named Doc or Brown, As for Einstein, if you look at the video's closely you will see he is mixed shades of tan and brown. I realize my rendition is a bit dark.