Template:On this day/April

• 1915: Harry Morgan, actor and guest star, was born.
• 1929: Max von Sydow, actor and guest star, was born.
• 1936: John Madden, football player and guest star, was born.
• 1959: Brian Setzer, guitarist and guest star, was born.
• 1975: David Harbour, actor and guest star, was born.
• 1984: Mandy Moore, singer and guest star, was born.
• 2012: Bart Simpson: Out to Lunch was released.
• 2016: "How Lisa Got Her Marge Back" aired for the first time.
• 2022: "The Sound of Bleeding Gums" aired for the first time.