Starring Peter Davidson, Jon Pertwee, Patrick Troughton, and Richard Hurndall as the Doctor. Tom Baker and William Hartnell made cameo appearances in the form of images on stock footage. Tom Baker didn't make it because he didn't want to, and William Hartnell passed away in 1975. That's why Richard Hurndall played the "first Doctor". Then we get to see some of the past companions of the Five Doctors as well. Enjoy the first segment.