This is credited as a Mickey Mouse cartoon, but he never actually says a word.
"The Whalers" from 1938 is the second and final Mickey Mouse Boat Cartoon in 1938, after "Boat Builders".
"The Whalers" from 1938 is the last time Pinto Colvig would voice Goofy before his departure from Disney in the late 1930's. He would return in the mid-1940's in "How to Be a Sailor (1944)".
The Whale in "The Whalers" from 1938 served as an inspiration for Monstro the Whale in the 1940 film "Pinocchio (1940)", which was in production at the time.
"The Whalers" from 1938 appears as a projector screen transition level in the 2010 video game "Epic Mickey (2010)", where it is in the Tortooga.