It's Always Sunny in Philadelphia Season 17 Characters & Cast — No Spoilers
Every character in It's Always Sunny in Philadelphia season 17 with photos and the actors who play them, including Charlie Day, Glenn Howerton, Rob Mac — spoiler-free, nothing from later seasons.
- Charlie Kelly — played by Charlie Day
- Dennis Reynolds — played by Glenn Howerton
- Ronald 'Mac' McDonald — played by Rob Mac
- Dee Reynolds — played by Kaitlin Olson
- Frank Reynolds — played by Danny DeVito
- Waitress — played by Mary Elizabeth Ellis
- Jesse Palmer — played by Jesse Palmer
- Matthew 'Rickety Cricket' Mara — played by David Hornsby
- Tammy — played by Jaimie Alexander
- Trey — played by Robert Adamson
- The Lawyer — played by Brian Unger
- Uncle Jack — played by Andrew Friedman
- Chet Wallum — played by Bob Wiltfong
- Artemis — played by Artemis Pebdani
- Bonnie Kelly — played by Lynne Marie Stewart
- Janine Teagues — played by Quinta Brunson
- Barbara Howard — played by Sheryl Lee Ralph
- Gregory Eddie — played by Tyler James Williams
- Ava Coleman — played by Janelle James
- Melissa Schemmenti — played by Lisa Ann Walter
All seasons of It's Always Sunny in Philadelphia: full spoiler-free character guide