Most of the cast of Battlestar Galactica, especially Adama, President Roslin, and Starbuck. As the series goes on, Adama and Roslin are just wildly irresponsible in their treatment of their leadership roles, doing things to endanger everyone or risking precious resources on wild goose chases, and just generally being smug and complacent when they should be under heaps of scrutiny. They could have been less offensive in a different storyline, but with the way the writers handled it, they were permanently in the goodest of the good guy roles even as they were being relentlessly terrible.
Starbuck is just the worst. Everything she does is calculated to be relentlessly abrasive. All she does is mope around whining about how bad her problems are when the entire human race is on the verge of being killed. She has no redeeming character traits, but she is nonetheless put on the same damn good guy pedestal by the writers