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According to the USDA, yes, you can safelycookyourfrozen chicken, as long as you follow a couple general guidelines. In order to skip the thawing step and turn yourfrozen chickeninto a fully-cooked, safe-to-eat dinner, use your oven or stove top and simply increase yourcookingtime by at least 50%.
So really you could check that in 2 seconds. I've always cooked whole chickens from frozen, as it's just easier to buy in bulk and keep them in the freezer because I live so rurally. It's absolutely safe. They don't go dry, and they don't come out raw in the middle.