https://www.youtube.com/channel/UCKpH0CKltc73e4wh0_pgL3g/videos
Elon Musk vs. HAL 9000 is a recent upload. Yes, he swapped out Kier Dullea's face in 2001: A Space Odyssey (https://www.youtube.com/watch?v=sTksmoTdT4Q).
So you can probably guess the puntastic video title.
"Full House needed more mustaches"
https://twitter.com/drfakenstein/status/1158835349931479040
"Full House of Mustaches - Nick Offerman [deepfake]"
https://youtu.be/aUphMqs1vFw
You got it, Ron Swanson!
https://www.youtube.com/channel/UC9PLdpbloc1pfg3ds3My98w <<<< "DrFakenstein". And yes he has Mike Tyson as Oprah. O_O
...
"Keanu Reeves as Forest Gump"
https://youtu.be/cVljNVV5VPw
("TheFakening" = https://www.youtube.com/channel/UC5D-8hVVwLB0DNrcSBqoVxg )
#DeepFakes audio-only is even easier:
https://www.youtube.com/watch?v=6bFN2YkN6bo
"You can fake somebody's voice with only 15 minutes of audio"
-sentdex, a programming youtuber and Machine Learning guru so good that he is who the "Code Bullet" looks up to and steals code from
Also, on the subject of the dangers of this technology, saw this today:
https://thenextweb.com/security/2019/09/02/fraudsters-deepfake-ceos-voice-to-trick-manager-into-transferring-243000/
Commercially available, folks.