Trail of the Pink Panther series regulars include Herbert Lom as Chief Inspector Dreyfus, Graham Stark as Hercule LaJoy (last seen in the 1964 Pink Panther film "A Shot in the Dark"), Burt Kwouk as Clouseau's faithful man servant Cato and André Maranne as Sgt. François Chevalier. "Trail" featured the animated opening and closing credits, animated by Marvel Productions and written and directed by Art Leonardi. Director Blake Edwards dedicated the film to Sellers, "the one and only Inspector Clouseau." Despite the dedication, Sellers' wife Lynne Frederick filed a $3 million lawsuit against the film's producers and the studio, claiming that the film diminished Sellers'
Curse of the Pink Panther of the Pink Panther". "Curse of the Pink Panther" had been the original working title for what became "Revenge of the Pink Panther", made five years previously. In "Trail of the Pink Panther", Joanna Lumley had been a TV investigative reporter. Here she is cast as the aristocratic owner of a health spa, Countess Chandra. Dudley Moore, previously briefly considered for the role of Clouseau for "Romance of the Pink Panther" following Sellers' death, had been Blake Edwards' original choice for the role of Det. Clifton Sleigh, but Moore turned it down, not wishing to commit to a series following