Dan Aykroyd – Casper

This live-action adaptation of the Harvey Comics cartoon character has one of the more fun cameos in this gallery. With ghosts inhabiting the crumbling mansion, Dr. Harvey enlists a slew of help to rid the home of the wicked spirits, with one of those experts being none other than Dan Aykroyd's Dr. Raymond Stantz from Ghostbusters. Flying solo for this adventure, the spirits in the home prove too much for Stantz in this quick appearance as he is chased out the house. It's a fitting cameo to be made in a ghost-centric story and a fun nod to audiences that the Ghostbusters take jobs around the country.