The voices for the singing busts are provided by the Dapper Dans, a barbershop quartet that performs regularly at Disneyland park in Anaheim, California.

In homage: Two of the singing busts were modeled after Thurl Ravenscroft and Paul Frees. Thurl Ravenscroft (Better know as the voice of Tony the Tiger) can be heard singing lead for the song "Grim, Grinning Ghosts" on the Disneyland attraction "The Haunted Mansion" and the late Paul Frees provided the voice of the "Ghost Host" for the same attraction.

When Eddie Murphy and his family first arrive at the mansion and are checking the locked gate, there is a quick shot of Marsha Thomason's hands holding the lock. If you look closely you will notice the lock is in the shape of Winnie the Pooh.

The family that owns the Mansion is named 'Gracey.' This is a tribute to Yale Gracey, someone who helped design the ride on which the movie is based.