Continuity-Related Comic Book Character
Prince Mark
Prince Mark (SF, 11)
Real name: Mark
AKA: Prince Mark of Sardonia
Species: Human
Homeworld: Earth
Universe: Earth-1A
Relatives: Zorina (fiancé)
Base: Sardonia
Prince Mark (Adventure Comics 303)

Prince Mark
Image from Adventure Comics, #303 (December, 1962).

Prince Mark 2 (Adventure Comics 303)

Prince Mark
Image from Adventure Comics, #303 (December, 1962).

Prince Mark is heir to the throne of 'Sardonia'. He was weak in his dealings and lost the respect of his woman until he met Superboy. Amazingly, he looks like Superboy’s twin.

Background Information

In the parallel universe of Earth-One, while Clark was still young; he was heading back home from a school vacation, and falls out of a plane door while in flight. His blunder now puts his identity at risk. He now must provide a reason for surviving a seemingly fatal accident. As he scans the countryside, he believes that he is about to land in the kingdom of Sardonia.

Shortly after he lands, he is mistaken for Prince Mark, a nobleman in this land. A young woman, named Zorina arrives for their secret meeting early. She is upset and tells him that she wants to break up with him because he is weak. She dashes before Clark could explain who he really is. Superboy spots the real Prince Mark in the distance. He is being attacked while on horseback by two vicious falcons. He saves the prince’s life and uses his telescopic vision to follow the falcon’ lair. Then using his super-hearing he discovers that Lord Hawke is trying to kill Prince Mark in order to ascend to the throne. The prince laments that he is afraid of the lord for quite some time and that because of that his betrothed, Zorina, has lost respect for him.

Superboy suggests that because they look so much alike, they should switch places, so Superboy can use his super-powers to foil Lord Hawke’s plans. After the two switch identities, Superboy (as Prince Mark) survives multiple attempts on his life and wins back Zorina's heart in the process. He does, of course, credit some of his "rescues" to Superboy. While this is happening, Prince Mark is secretly learning various fighting disciplines.

Lord Hawke begins to suspect Mark and Superboy switched places and devises a Kryptonite trap to capture Superboy. He succeeds and throws Superboy and the kryptonite a pit. Mark attempts a rescue and is eventually to switch clothing again. Prince Mark prevents Lord Hawke's coronation. Lord Hawke escapes and tries to loot the castle and flee, but Superboy stops him.[1]

A few years later, Prince Mark found himself the target of the assassin known as the Kingslayer while at a U.N. Conference in NYC. Superman takes on the responsibility of protecting him, due to his time spent with him as a teenager. Superman naturally protects the prince from being harmed.[2]


Prince Mark did not appear in any episode of the Superfriends TV Show.

Earth-One Appearances:

  • Adventure Comics, #303 (December, 1962)

Earth-1A Appearance:


  • Prince Mark’s first appearance was in Adventure Comics, #303 (December, 1962).
  • He was created by Leo Dorfman and George Papp.


  1. The above account is from Adventure Comics, #303 (December, 1962).
  2. As revealed in Super Friends, #11 (April/May 1978).
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