RIP Finn Seyfried!!! The true original celebrity dog in the social media era who has publicly been by Amanda's side for 15 YEARS. Amanda Seyfried posted about putting down Finn before she did it which is interesting and unique for celeb posts. pic.twitter.com/CaNb5UUAnP — Rob's crow (@kswiftthegreat) July 23, 2026I'm so sorry to hear that Amanda Seyfried's dog Finn has crossed Rainbow Bridge at the age of 16. Here is a look back at 2014, when the actress and Finn helped to promote pet adoption through @bestfriends #SaveThemAll campaign https://t.co/IOQusRJo9z pic.twitter.com/qVdAk11YwO — Hollywood Dogs (@HollywoodDogs) July 25, 2026The most beautiful celeb dog has diedFinn was a 16 year old Australian Shepard Amanda adopted when she was working on HBO's Big Love