Dr. Evil, played by Mike Myers in Austin Powers, is an impression of Lorne Michaels.
Mike's impression of Lorne was allegedly based on Dana's impression of Lorne - most notably Dr. Evil's pinky gesture. When asked about it by Howard Stern, this is what Dana says:
[Mike Myers and I have] never really talked about [the Dr. Evil character]. I've talked about it to the therapist and I've basically let it go. [...] Part of Mike's talent is his ability to see things. So for him to pick to pick out Bohemian Rhapsody for Wayne's World was a brilliant thing. And when I finally did the impression for Lorne - and the pinky thing was a made up thing, Lorne doesn't do that - the pinky thing I did do, yes.
Dana also goes on to say that his Lorne Michaels impression was something he initially did behind-the-scenes and he respects and admires Mike Myers, though he has not contacted him about this entire ordeal.