The 25-year-old, just a few years removed from college, has amassed more than a million followers on TikTok, frequently guests on cable news networks, has started voicing characters on “Family Guy” and “The Simpsons” and is currently in the middle of a national stand-up tour, mixing in his astute impressions with observational humor. On the red carpet, whether he’s at the Grammys or the Emmys, it seems like every celebrity is pleased to meet him, having become increasingly familiar with his online presence.