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 later adopted by the animated spin-off series, "The Inspector." Although official, the live-action film "Inspector Clouseau" (1968) starring Alan Arkin, is generally not considered by fans to be part of the series canon, since it involved neither Sellers nor Edwards. Some elements of Arkin's performance and costuming, however, were retained when Peter Sellers resumed the role of Clouseau for "Return" in 1975. Despite speculation, Alan Arkin does not appear in "Trail of the Pink Panther." The film that launched the second Pink Panther series, "The Pink Panther," starring Martin as Clouseau, directed by Shawn Levy and produced by Robert Simonds,