Harrison Page said that when he auditioned for the role of Captain Trunk, he pictured him as an extremely exasperated, frustrated man, and, therefore, chose to play him as constantly yelling at Hammer. He did that, which alerted other people in the building, and got the role.
Inspector Hammer, do you have a prediction?
Sledge Hammer: Yes. The first brain-transplant will be performed & YOU will be the reciprient.
The episode "Last of the Red Hot Vampires" ends with the dedication "In Memory of Mr. Blasko". Blasko was the real last name of Bela Lugosi.
An alternate, unaired version of the pilot episode "Under the Gun" is available on the Season One DVD. It includes 10 minutes of additional footage, an alternate epilogue and completely different opening and ending theme music.