‘Abbott Elementary’ exclusive: details on crossover ep with ‘It’s Always Sunny in Philadelphia’ admin 4 days ago World Leaks Comments Off on ‘Abbott Elementary’ exclusive: details on crossover ep with ‘It’s Always Sunny in Philadelphia’ 1 Views “Abbott Elementary” star Lisa Ann Walter spoke exclusively to On The Red Carpet about the “unhinged” crossover this season. Share Facebook Twitter Stumbleupon LinkedIn Pinterest