Susan is a fictional character portrayed by Iris Liu in the TV series It's Always Sunny in Philadelphia.
They appear in 1 episodes out of a total of 172 aired so far
Susan is also portrayed by Kim Hawthorne.
Episodes1
Dennis Takes a Mental Health Day
episode S16.E8 july 2023After a physical reveals Dennis has high blood pressure, he decides to take a day away from The Gang to de-stress at the beach. But life has other plans, and his day spirals into a string of mishaps until he can no longer contain his rage.