"You didn't give us a great deal of choice in the matter," Roget said, his face an impassive mask.

He straightened, slowly, schooling his face into an impassive mask.

Seven of Nine kept her face an impassive mask as she walked up the corridor.

Then, just as quickly, the impassive mask was back in place.

Casmir looked back once, his face an impassive white mask.

Behind his hard, impassive mask Blake's mind was working fast.

And he stood, his face an impassive mask, waiting.

She put on her best impassive mask to conceal the recognition.

"I have no idea," he replied, his face an impassive mask.

Male, he wore an impassive golden mask over his face.