Amanda Bynes looks somber as she steps out in LA following death of her All That co-star Christy Knowings

Christy Knowings, former 'All That' star, dies at 46

Christy Knowings dead at 46: All That actress who starred with Amanda Bynes dies in hospital after asthma attack

Amanda Bynes debuts shocking WHITE eyebrows to match her platinum blonde hair during LA coffee run... amid Ozempic transformation