Zymire Hughes, 22, was taken into custody Tuesday night in Las Vegas. Investigators say Hughes had been living there since February.
Hughes waived extradition and is due back in court for another hearing next month.
He is facing charges including terroristic threats, harassment, simple assault and intimidation.
Investigators say Hughes chased and harassed people in Center City during the early morning hours of Aug. 15. Police believe he may have been motivated by a desire for social media attention.
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During a briefing last week, Philadelphia Police Capt. Jason Smith said Hughes encountered as many as 15 or 16 people that morning. In several incidents, police said Hughes approached victims while wearing what authorities described as a "distinctive Chucky doll-style Halloween mask."
Investigators said Hughes fled Philadelphia on Aug. 19, first flying from Trenton-Mercer Airport to Orlando, Florida. Authorities said he later flew from Orlando to Harry Reid International Airport in Las Vegas.
According to Supervisory Deputy U.S. Marshal Robert Clark, investigators tracked Hughes to an apartment in southeast Las Vegas, where they believe he remained for about five days.
Officials said Hughes has ties to both California and Las Vegas through employment and also has family in Philadelphia.
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