Jon Pertwee, Tom Baker, Peter Davison and Colin Baker, who played the Doctor in Doctor Who (1963) during four consecutive incarnations between them, were each seriously considered for the role of the Dream Maker.
Rufus's dream from the first episode is shown during the closing credits.
The Dream Maker's voice is heard in the Central television company credit at the end of the closing credits in Series 4 and is heard saying "Have a pleasant dream, everyone!"
In the original 1985 promo. Zordrak's name was originally Nasta Shelfim". Which was an anagram of "Satan Himself". This was eventually changed for being too dark.