Below is excerpt from the wired.com article about S4 of BSG. According to them, Aaron has said he will never say FRAK on BSG …
Frak is back, big time
Characters spew BSG’s signature F word four times in the season opener’s first three minutes. But don’t expect the Chief to use the expletive any time soon. Aaron Douglas, the actor who plays Chief Petty Officer Galen Tyrol, told Wired.com that he vows never to utter frak on camera. Too bad he’s used it at home: While taking pots out of a kitchen cabinet, Douglas says, some kitchenware fell directly on his foot. Gut reaction? “Frak!”
Is that true? I know the Chief has said frakking, mother-frakker, frak wit. But has the Chief never said frak? Really? Hmmmm, I think this needs a little investigating. Off to rewatch scenes of the Chief.
EDIT: Here’s all the mentions of frak-isms by the Chief. I stopped checking once I found an actual frak.
1×07: Six Degrees of Separation – “Frak it” [Note: He was mumbling it. So I’ll let him get away with that one]
2×01: Scattered – “That’s it. That’s it, you stupid, frakked-up crap!”
2×02: Valley of Darkness – “Mother-frakker”
2×08: Final Cut – “You know what? Frak the camera. You’ve been riding by crews ass for no frakking reason”
2×09: Flight of the Phoenix – “Did she fill you in on the rest of the plan? She and I were going to muster out at the end of our service. You know, then we would get married. Maybe we would have children. I guess I’m just a big frakkin’ idiot, though, huh? Probably that goddamn toaster’s plan all along”
2×09: Flight of the Phoenix – “(in his head) Frak it. Why not?”
And from tonight’s episode …
4×01: He That Believeth In Me – “Get the frak in there, go kill something”
4×01: He That Believeth In Me – “Anders! Get the frak in your Viper!”
EDIT (2): In Aaron’s defence (because I asked him about this) He said that he gave them that quote back in season one. And as you can see, he never said it in season one. Aaron FTW :)