- Charlie Day (Charlie Kelly)
- Glenn Howerton (Dennis Reynolds)
- Rob Mac (Ronald 'Mac' McDonald)
- Kaitlin Olson (Dee Reynolds)
- Danny DeVito (Frank Reynolds)
It's Always Sunny in Philadelphia — S12E3
Episode: Old Lady House: A Situation Comedy
Air Date: 2017-01-18
Runtime: 21 min
Overview
Charlie thinks Mac's mom is holding his mom hostage so the gang installs spy cameras in their house. They discover the moms are quite entertaining once Dennis makes edits to the footage.