If you're trying to place the hart to hart tv series cast, start with the regular household: Robert Wagner as Jonathan Hart, Stefanie Powers as Jennifer Hart, Lionel Stander as Max, and Freeway as the Harts' dog. Guest stars changed from episode to episode, and the reunion movies brought back the key faces fans expected, so it helps to separate the original series cast from one-off appearances and later returns.

Who Is in the Hart to Hart Main Cast?
The main cast of Hart to Hart was small, which is one reason the show is easy to remember. Jonathan and Jennifer carried the mystery and romance, Max grounded the household, and Freeway gave the Harts' polished world a warmer, more lived-in feel.
For a first-time viewer, the simplest way to watch the show is to treat the four regulars as the emotional center. The weekly suspects, victims, and social acquaintances matter to each mystery, but the series works because the Harts feel like a real team rather than two characters taking turns in the spotlight.
Robert Wagner as Jonathan Hart
Robert Wagner played Jonathan Hart, a wealthy businessman who could move easily from a formal party to a chase scene. The role needed charm more than toughness, and Wagner gave Jonathan a relaxed confidence that kept him from feeling cold or untouchable.
If you are checking the cast because you remember the show's tone, Jonathan is a big part of it. He is polished, but the appeal comes from how playful and affectionate he is with Jennifer, not just from the millionaire fantasy around him.
Stefanie Powers as Jennifer Hart
Stefanie Powers played Jennifer Hart, Jonathan's wife and a freelance journalist. Jennifer was stylish, but she was not decorative; she asked questions, noticed details, walked into danger, and often pushed the investigation forward.
Her chemistry with Robert Wagner is the main reason the series still feels different from many detective shows of the same era. For viewers choosing whether to revisit the original episodes or only sample a few, the Jonathan-and-Jennifer dynamic is the thing to check first.
Lionel Stander as Max
Lionel Stander played Max, the Harts' butler, cook, chauffeur, and trusted friend. His gravelly voice and dry reactions gave the show a comic edge, but Max also made the household feel like a family rather than a rich couple with staff.
Freeway as the Harts' dog
Freeway was the Harts' dog and one of the small details fans still remember warmly. He did not drive the plots, of course, but he softened the luxury setting and made the Harts' home life feel more personal.
For casual viewers, Freeway is easy to underestimate. For longtime fans, he is part of the comfort of the series: the mansion, Max fussing in the background, Jonathan and Jennifer bantering, and the dog making the whole thing feel less like a glossy crime setup.
Who Are the Guest Stars in Hart to Hart?
Hart to Hart used guest stars the way many mystery shows do: each episode needed fresh suspects, victims, business contacts, society friends, and people with secrets. The important thing is not to confuse those guest roles with the regular cast.

Notable celebrity appearances
The series often brought in recognizable film and television performers for individual mysteries. That suited the show's world: charity events, resorts, business circles, fashionably wealthy friends, and international settings all gave famous guest faces a natural place to appear.
Recurring guest actors
Some supporting actors appeared more than once, which helped the show feel less like a completely reset mystery every week. These returns gave the Harts a wider social world, even though the series remained mostly episodic.
- Regular viewer scenario: recurring faces make the world feel familiar and reward memory.
- Episode-hopping scenario: you can still follow most stories without knowing every previous appearance.
Memorable mystery characters
Many of the best guest roles were not famous-name cameos but sharp mystery characters: polished con artists, nervous witnesses, jealous lovers, shady business partners, and respectable-looking criminals. Those parts gave each episode its own flavor.
Who Returned for the Hart to Hart Reunion Movies?
The reunion movies worked best when they brought back the people viewers most associated with the original series. Robert Wagner and Stefanie Powers returned as Jonathan and Jennifer Hart, and Lionel Stander returned as Max in the early reunion period.
For someone watching the franchise out of order, this distinction matters: the reunion films are not just another season of the original show. They are later TV movies built around the same central chemistry, so the returning cast is the main reason they feel connected to the 1979–1984 series.

Robert Wagner as Jonathan Hart
Robert Wagner returned as Jonathan Hart in the reunion movies, which gave the films immediate continuity. Without Wagner's smooth, lightly playful version of Jonathan, the revival format would have felt much less connected to the original show.
Stefanie Powers as Jennifer Hart
Stefanie Powers also returned as Jennifer Hart, keeping the central partnership intact. That mattered because Hart to Hart was never only about mysteries; it was about the way Jonathan and Jennifer solved them together.
If you are deciding whether the reunion movies are worth watching after the series, Powers' return is one of the strongest reasons to try them. The familiar banter and shared confidence are more important than whether every movie matches the best original episodes.
Lionel Stander as Max
Lionel Stander returned as Max during the early reunion movie period. His presence restored part of the household warmth fans remembered from the series, especially the feeling that Max was family rather than simply an employee.
After Stander's death in 1994, Max's absence was noticeable. That says a lot about how much the character contributed to the identity of Hart to Hart, even though Jonathan and Jennifer were the headline couple.
Conclusion
The lasting appeal of Hart to Hart comes from how clearly each cast member fits the show's mood: Wagner and Powers provide the romantic detective partnership, Stander gives the household its heart, and Freeway adds a touch of everyday warmth. Guest stars and reunion appearances are worth exploring, but if you want to understand why the series still feels fondly remembered, start with the original core cast.