When Garthe is entering Goliath during the prison breakout, the driver's side window is down. In the wide shot, however, it is up.
Garthe's prison number is 479762. He was kept in Cell Block G.
KITT: You know, it's hard to believe Garthe succeeded in breaking out of prison.
Michael: Not with Goliath, it isn't.
KITT: Did you say Goliath?
Michael: Yeah, I thought I'd mentioned that.
KITT: You certainly did not. Michael, I thought we destroyed that monster.
Michael: I thought we did, too. Somehow, some way, somebody put the pieces back together again.
Garthe: As always, you underestimate me. Our last encounter wasn't a defeat, it was merely a temporary setback. I will succeed this time. It is my destiny.
Devon: Your destiny is self-destruction.
Garthe: Destruction, yes. But Michael Knight's, not mine. And you and you will be the instruments.
Devon: Adrianne Margeaux.
Adrianne: I'm so pleased you remember, but so disappointed that Michael Knight isn't with you.
April: I thought you were in prison.
Adrianne: Prison? Perish the thought. I have the best lawyers that money can buy. And they bought the best judge that money can buy. Isn't is fascinating the friends that we have in common?
KITT: Michael, surely you're not thinking of confrontation?
Michael: I'd rather avoid one, but he's standing between us and Devon and April. All right, scan for the weak spots.
KITT: Michael, they've been repaired. Goliath is invulnerable.
Michael: All right... hang on pal. He's got the size, but we've got the maneuverability.
KITT: Right now I'd trade!
KITT: Michael, what are we gonna do?
Michael: Pray April fixed you.
KITT: Michael, is this it? The big adios?
Adrianne: Now, now, Garthe, your fangs are showing.
Music: "Heart and Soul" by Huey Lewis and the News (cover version"
Series star Rebecca Holden and guest Ann Turkel can also be seen together in the Matt Houston episode "Here's Another Fine Mess."
This marks the first of Peter Mark Richman's two, unrelated appearances on Knight Rider. He can also be seen in season four's "Many Happy Returns."
"Goliath Returns," like "Goliath" before it, originally aired as a special two-hour episode. For syndication, it has been divided into two one-hour parts, resulting in cuts and trims to allow time for the extra sets of credits and the "previously on Knight Rider" recap. The original two hour presentation has been restored for the DVD boxed set release.
The original working title of this episode was 'Deja Vu'.
This story is unique in that it is the only one to bring back two previously seen villains (Garthe from 'Goliath', and Adrienne from 'Soul Survivor', both fan favourite episodes), to team up together.
Although Ann Turkel is billed (including on-screen) as Adrianne St.Clair, she is in fact the same character, Adrianne Margeaux, that appeared previously in the season in 'Soul Survivor' (She is referred to by this name in dialogue).