"I have just seen him at Blackpool zoo with a monkey on his shoulder," Karen Long wrote in reference to Ross's pet monkey on the hit sitcom, Marcel.
Danny Harrod joked on Facebook that people should give the thief a break.
"Calm down everyone. This bloke could have fallen on hard times. Maybe it hadn't been his week, his month or even his year," he wrote.
One of the best comments came from James Peden who wrote: "If he's jumped in Blackpool sea you'll never catch him. I've heard he's a really good Schwimmer."
Referencing another Friends star, Sam Marshall said: "When questioned he couldn't remember a thing, he drew a LeBlanc."
Blackpool Police had a bit of fun with the comments too.
"Thank you to everyone for your speedy responses. We have investigated this matter thoroughly and have confirmed that David Schwimmer was in America on this date. We're so sorry it has to be this way," the police wrote.
The thief is still at large, however, police have responded to the hilarious controversy over his doppelganger.
- With News.com.au