A contemporary Hollywood Reporter production chart listed Wade Boteler, Jerry Mandy, and Harry Bowen as cast members, but they were not seen in the movie.
A fat girl in the beach photograph appears to be June Gittelson, and the girl in the framed photograph appears to be Martha Sleeper.
At 4'9" and under a hundred pounds, Daphne Pollard was almost literally half the size of screen husband Oliver Hardy. She more than made up for the size differential in frostiness, and portrayed Mrs. Hardy in several films.
In order for the audience to distinguish both sets of twins, Stan and Ollie were announced with "The Ku-Kus", while Bert and Alf were identified by "Sailor's Hornpipe".
King Edward VIII (aka Duke of Windsor) of Great Britain requested a command performance screening of the film in October of 1936, before it was released.
Laurel & Hardy had previously played their own sons in "Brats" and each others' wives in "Twice Two" before playing their own twins in this film.
One of two Laurel & Hardy features to be credited as 'A Stan Laurel Production' (the other was Way Out West), even though Metro-Goldwyn-Mayer Corp., not Stan Laurel Productions, had the only copyright claim on both films.