Customer #1 is a fictional character portrayed by BJ Tanner in the TV series It's Always Sunny in Philadelphia.
They appear in 1 episodes out of a total of 172 aired so far
Customer #1 is also portrayed by Matthew Jones and Leonora Pitts.
Episodes1
The Gang Goes to a Water Park
episode S12.E2 january 2017The gang takes a trip to a local waterpark, ripe with personal agendas and ulterior motives. Dennis feeds off his mantra of "the park provides" and takes on a protégé. Frank and Charlie are determined to ride every ride by any means necessary and Mac and Dee get stuck in a tube slide for most of the day.