There is no shortage of Homer-centered episodes in The Simpsons, classics where the Dan Castellaneta-voiced patriarch is at the forefront, like “Homer at the Bat” and “Colonel Homer.” But the episodes where Homer is reunited with his mother, Mona, played by the iconic Glenn Close, are arguably the most personal. It’s among the only times we really ever see Homer in a deep, complex, emotional state – one that can't be settled by a donut – and because these episodes give unprecedented depth to the character, they forge a storyline that stands as Homer's biggest and best.