#3: Kristen Johnston as Sally Solomon
Sally Solomon wasn’t just the aliens’ security officer—she was a warrior stuck in the body of a human woman, learning about gender roles, heels, and dating with chaotic enthusiasm. Kristen Johnston’s physical comedy was unmatched; she could turn a head tilt, a punch, or a pout into a laugh-out-loud moment.

Before 3rd Rock, Johnston was known mostly in New York theater circles. She was a Juilliard-trained actress with a flair for the dramatic, which made her perfect for Sally—an alien who approached human femininity like a battlefield. The show made her a star overnight, and rightfully so.
