Carl Kolchak, from
Kolchak: the Night Stalker in the 70s. He's not as lucky as Tintin is, that's for certain--he tends to get fired from paper to paper, but he is just as brave and selfless. In the first
Night Stalker film, he's working for a paper in Las Vegas when he stumbles upon a story about bizarre disappearances--and it turns out that a vampire named Janos Skorzeny is behind it. Vampire hunting ensues, and for all his troubles, Carl ends up fired because the authorities don't want the story getting around.
In the second film,
The Night Strangler, Carl ends up meeting with his old editor from Las Vegas, Tony Vincenzo, in Seattle who is quick to rehire him for the current paper (Tony hadn't been the one to fire him in Las Vegas--someone higher up had done that). And once again, Carl finds himself covering a bizarre mystery which ends up involving a man who can make himself immortal at the expense of others' lives. It's pretty much deja vu; Carl saves the day, but is fired for his troubles--and, this time, Tony is fired along with him.
The TV series itself,
Kolchak: the Night Stalker takes place in Chicago, some time after the events after the second film. Tony is now the editor of a wire service paper, and Carl is once again working for him. And, once again, Carl finds himself frequently dealing with monsters of various kinds; in what is truly a thankless job, he sticks his neck out to stop them, no matter what they are--malevolent spirits, witches, even demons and rakshasas.
But what really draws me to this series is the dynamic between Carl and Tony (played by two of my most favorite actors--Darren McGavin and Simon Oakland), particularly from the second film and onwards. They squabble a lot, disagreeing on almost everything (Tony doesn't believe in the supernatural, which drives Carl crazy when he's trying to convince him of all the things he's been seeing and dealing with), but, despite that, you can tell that they genuinely care about each other.
Edit: if anyone is mildly interested by my description, I recommend starting with the episode "Legacy of Terror," as it is the most Tintin-esque, involving an Aztec ritual with a mummy named Nanautzen coming to life (he and Rascar Capac should get together sometime)!