Found the following article online, use it to answer the question: Who are the pursuers the stooges are hiding from when they find themselves in a lion's den.?

The Stooges are stowaways on a boxcar carrying a furniture consignment to Hollywood. Fully expecting for no good reason to get a job and become movie stars, and dressed for the occasion, the Stooges sneak into a movie studio—where they are mistaken for three new executives who are due to take over the facility. Given the authority, they promptly abuse it and take over the production of a movie set in hopes of shooting a blockbuster movie. Curly gets off on the wrong foot when, unable to light his match for a smoke, spots an actress receiving a pedicure (silent star Mildred Harris). He then strikes the match on the sole of her bare foot, startling her. Angered, she is about to storm off the set until the trio convince her to stay. The trio then act out the love scene as they want it filmed, leading its stars to abandon the set.
Another telegram arrives with the news that three actual executives were delayed by a storm. Angered at the deception, the studio boss and the film's crew go after the Stooges, who flee the scene. After the trio is able to hide from their pursuers, they soon find themselves in a lion's den. The three quickly get into a nearby car, but the lion catches up and attacks them, leaving the car to go out of control down a nearby street.

the studio boss and the film's crew