Katey Sagal broke through in comedy, but she broke out in drama.

She has been a cartoon, figuratively speaking (as the malpracticing matriarch Peg Bundy on Married… With Children) and literally (as the one-eyed Lela on Futurama). She has starred as one extremely territorial, badass pack leader (Sons of Anarchy) and played mother to main characters on some of your favorite comedies (That '70s Show, The Big Bang Theory, Brooklyn Nine-Nine). She has played a sentient, sinister smart-home system. She always has a side gig as a singer-songwriter. And even though their voices sound alike, Katey Sagal is positively, most definitely not Allison Janney.