Before Michael Richards became news after he was heckled by an audience member at show, he heckled Andy Kaufman during a skit they were doing together on Fridays. He looks the same now as he did back when he was 31 on that 1981 episode except his hair was more tame.
You might not remember (because I didn’t) but that skit was featured in Man on the Moon and below is the actual footage of Andy Kaufman apologizing for it and another scene that was reenacted for the movie. If you don’t know about this infamous incident you can read about it on Wikipedia.
Can I just say that Andy Kaufman was such a comedic genius who was taken away from us way too soon.