One day a question floated across my Twitter timeline: Who’s the best character to join a show after the first season?

And my immediate response was, “I can’t answer this with a tweet. I need a blog post!”

So here I am, months later, finally getting around to answering that highly subjective question. In order to keep from rambling, I only picked characters from shows I’ve written about here. And even then, I restrained myself to keep it down to a dull roar.

Let’s start off with a couple of the more subjective ones and work our way (okay, my way) closer to objective.

Ben Kokua (Al Harrington) and Duke Lukela (Herman Wedemeyer), Hawaii Five-O—Yeah, you’re going to have to fight me on this one. Ben replaced Kono (Zulu) at the beginning of the fifth season and stayed through the seventh season. I feel he made a nice addition to the team. Solid, native, not flashy, except when he was undercover and had to wear ugly shirts as part of the gig. Al Harrington had already been on the show a few times, playing other (and usually bad) guys, and has since had a recurring role on the new show (playing yet another character). Clearly, every version of this show needs Al Harrington in some form, though I maintain Ben was the best.

Duke is a legend in my mind. Though Herman Wedemeyer was there from the beginning, the character of Duke didn’t actually happen until the fourth season. Of the 155 episodes that Herman Wedemeyer is credited for, only seven were not as Duke Lukela. Better yet, we get to watch as Duke goes from uniformed officer bit role to a detective with a starring credit in the final season. How marvelous is that? And if you still doubt that Duke should be on this list, then let me point out that the current show also has a Duke Lukela and he’s played by Dennis Chun, the son of the original Chin Ho, Kam Fong. Now that’s legend.

Sheriff Mort Metzger (Ron Masak), Murder, She Wrote–When Tom Bosley left the show, Cabot Cove needed a new sheriff. With Amos Tupper retired, the new law in town came in the form of Mort Metzger, a city cop who didn’t understand why the murder rate of a small town was so high and why some old woman was so involved in solving them. It was the fish-out-of-water aspect of Ron Masak’s character that not only separated him from Amos, but from everyone else in town. He spent half of his time bewildered by the goings-on of the locals, his hard line approach not so effective in a town where everybody knows everybody. Considering Ron Masak was in episodes of both The Monkees and Land of the Lost, it’s no wonder he was able to bring a touch of brilliance to this character and even make his never-seen, often-referred to wife Adelle come to life.

Detective Arthur Dietrich (Steve Landesberg) and Officer Carl Levitt (Ron Carey), Barney Miller–Both Steve Landesberg and Ron Carey appeared on the show as different characters prior to becoming the two of the characters on this list. Steve Landesburg first appeared as Father Paul in the first episode of season 2. The 12th episode of that same season, he made his first appearance as Dietrich, a dry-humored, incredibly intelligent detective who came in as Fish was going out. Of course, the two would appear together for over a season until Abe Vigoda’s official departure at the beginning of season 4. Many of his first episodes involved him trying to find a place in the 12th precinct. By the time the show ended, it was hard to imagine what it was like without him.

Ron Carey’s first appearance was as a character called The Mole in the last episode of the second season. It was only the third episode of the third season when he made his first appearance as Carl Levitt, a short, overly-enthusiastic uniform keen on making detective some day and taking every available opportunity to get into plain clothes. Not just a punchline, Levitt got to be the hero by saving some kids, ratted out the squad room with petty grievances to both protect them and to express his displeasure from being put down all the time, and eventually made detective in the final episode. As well he should.

Festus Haggen (Ken Curtis), Gunsmoke–This twenty-year show was on the air nine years before Festus Haggen settled in Dodge City permanently. It’s hard to imagine Gunsmoke without Ken Curtis, especially since most of the syndication packages typically show the later episodes, but Dennis Weaver played Chester Good for 290 episodes (1955-1964). Festus’s first appearance actually came in 1962, but he became a regular in 1964 after Dennis Weaver left and ended up becoming such an iconic character that it’s hard to imagine Ken Curtis as anyone else (he was, though, playing a few different characters on the show before becoming Festus). Dodge City wouldn’t be the same without him.

This list is far from complete, of course. And it’s far from objective, as I warned. I might just answer this question again sometime in the future. New list, new shows, new characters. The answers are endless.

Who do you think the best characters are that joined a show after the first season?