Rebecca Schaeffer, precisely 5ft 5 ½ (166.4 cm) tall, was an American actress and model whose petite stature defined her endearing image and roles. Her height contributed to her relatable, youthful appeal as Patti Russell, the quirky younger sister in the hit 1980s sitcom My Sister Sam, opposite taller co-stars. Schaeffer's compact frame also shone in modeling and her film debut The End of Innocence, highlighting her versatility despite her modest height. Key career moments included breakout TV success and rising film prospects.