High Potential, the new detective drama starring It’s Always Sunny in Philadelphia vet Kaitlin Olson, continues to break records and surpasses a notable revival. Debuting on ABC in September, the three-time Emmy-nominated Olson plays Morgan Gillory, a cleaner who solves a particularly difficult case, steering the police away from the wrong suspect, and is then asked to work as a consultant with a seasoned detective. The procedural, which is based on the French series HPI, has quickly built up an audience since its debut.