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'
The Pink Panther Strikes Again success. During the film's title sequence, there are references to television's "Alfred Hitchcock Presents" and "Batman", also the films "King Kong", "The Sound of Music" (which starred Blake Edwards's wife, Julie Andrews), "Dracula A.D. 1972", "Singin' in the Rain", "Steamboat Bill, Jr." and "Sweet Charity", putting the Pink Panther character and the animated persona of Inspector Clouseau into recognizable events from said movies. There is also a reference to "Jaws" in the ending credits sequence. The scene in which Clouseau impersonates a dentist and the use of laughing gas and pulling the wrong tooth are clearly inspired by Bob Hope