Browsing Reddit for hours on end is already fun, but it's even more exciting when there's the possibility that a famous celebrity might reply to your comment on a cat picture! Several famous actors, musicians, comedians, and athletes have participated in Reddit AMAs, but a few of these celebrities have also participated in other Reddit programs and discussions. Below, we discuss several famous Reddit users, their usernames, and favorite subs to browse. One famous entrepreneur even participated in Reddit's annual Secret Santa exchange!

Who is the most famous person on Reddit? Arnold Schwarzenegger tops our list. Arnold Schwarzenegger's Reddit handle is GovSchwarzenegger. He often participates in discussions on weight lifting and fitness. Anna Kendrick often talks about her love of Reddit in interviews, though her username remains a secret. Zach Braff's Reddit username is zachinoz. He chimes in on discussions about politics, and regularly makes fun of himself.

Bill Gates's Reddit user account name is thisisbillgates. In 2013, Gates participated in Reddit's Secret Santa. He bought his Secret Santa a book on travel and made a donation to Heifner International on her behalf. That same year, Mark McGrath from the band Sugar Ray gave his Reddit Secret Santa a signed photo of Michelle Visage from "RuPaul's Drag Race." The Reddit user had previously mentioned her love of the show, so McGrath's thoughtful gift was a big hit!

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