|First appearance||Superboy #86
|Created by||Leo Dorfman
|Full name||Peter Joseph Ross|
|Team affiliations||Legion of Super-Heroes|
|Supporting character of||Superboy
Pete was the childhood best friend of Clark Kent in Smallville. One night when they were camping together, Pete secretly saw Clark changing into Superboy to attend to an emergency. Pete kept his knowledge of the superhero's secret identity to himself, even avoiding revealing his discovery to Clark. Pete resolved to use this knowledge to help his friend, for example by creating a distraction to allow Clark to slip away from a dangerous situation without raising suspicion.
The Legion of Super-Heroes was aware of Pete's assistance to Clark and made him an honorary member during his teenage years (as shown in Superboy (volume 1) #98). During the Legion's battle with Mordru in Adventure Comics #370 ("The Devil's Jury"), it was stated that Pete Ross's knowledge of Superboy's secret identity would one day end up saving Superman's life (explaining why the Legion allowed Pete to retain that knowledge); however, no Superman story ever followed up on this detail until the very end of this continuity.
As an adult, Pete became widower with a son named Jonathan, who also learned the secret of Superman's secret identity (as shown in Action Comics #457). When Pete's son was kidnapped by an alien race (DC Comics Presents #13), Pete revealed to Clark his knowledge of his friend's dual identity, imploring Superman's help. When Clark was unable to provide this help, Pete suffered a nervous breakdown and attempted to discredit his former friend. Pete resided in a mental institution until his son was eventually saved.
In Alan Moore's story Whatever Happened to the Man of Tomorrow, Pete was captured by the Toyman and the Prankster and tortured into revealing Superman's true identity before being killed and stuffed in a toychest for Superman to find. Eventually, Superman discovered they were being manipulated by Mister Mxyzptlk.
Following the Crisis on Infinite Earths limited series, mainstream DC continuity was altered, such that Superman no longer had a teenage career as Superboy. However, the Legion of Super-Heroes was dependent upon the existence of Superboy as its primary inspiration. In an attempt to resolve the paradox, a Superman/Legion story was crafted, explaining that a version of the Silver Age Superboy (and all his supporting characters, including Pete Ross) inhabited a "pocket universe" created by the Time Trapper, and that the Trapper had protected this universe from being destroyed in the Crisis. Later, the villain decided to destroy the pocket universe Earth. Superboy saved his homeworld, but at the cost of his own life.
Following Superboy's disappearance from the pocket universe Earth, the Lex Luthor of that world is tricked into releasing Kryptonian criminals General Zod, Quex-Ul and Zaora from the Phantom Zone. They proceed to lay waste to the planet, eventually killing its entire population—including Pete Ross. Having been summoned from the regular universe by Luthor and Supergirl, Superman executes the genocidal killers using green kryptonite, and brings Supergirl (a protoplasmic duplicate of Lana Lang) with him back to his own Earth.
The modern version of Pete is a far more minor character in the Superman comics, who eventually married Lana Lang, with the two having a son, Clark Peter Ross, although the relationship is occasionally strained due to Lana's knowledge of Clark's secret and Pete feeling that he was fundamentally Lana's second choice. The two are presently divorced, even after briefly reuniting following the Ruin storyline (see below). Pete was Vice-President of the United States under Lex Luthor and briefly served as President following Luthor's impeachment but quickly resigned.
In the modern comic book continuity, Pete was not initially aware of Clark's secret. However, the secret was known by the villainous Manchester Black, who informed then-President Luthor of the secret, only later to wipe his memory of it. Prior to losing the knowledge of Clark's secret, Lex informed Pete that his close friend Clark Kent is in fact Superman. While Pete initially refrained from telling Clark about his knowledge, he did eventually tell him in Adventures of Superman #641.
Recently, it appeared that Ross had become a villain named "Ruin", but it was later revealed that he had instead been kidnapped by the real Ruin, Professor Emil Hamilton. Hamilton also kidnapped Pete's wife and child. Superman defeated the insane Professor Hamilton, rescued Pete, Lana, and their child, and exonerated Pete of the charges against him.
Pete has returned to Smallville without Lana to raise their son. He was seen attending the funeral of Jonathan Kent.
Pete appears in Blackest Night: Superman #1, where he works at Smallville's general store.
He appears in Superman: Red Son, though his name is changed to Pyotr Roslov. In this story, he is an illegitimate son of Joseph Stalin and is head of the KGB. Unlike his main series counterpart he harbours resentment and envy for Superman and his abilities. He executes the alternate versions of Thomas and Martha Wayne (in that world, anti-communist protesters), leading to Batman vowing to overthrow the Communist Party of the Soviet Union. It is also implied that he organised Stalin's poisoning, which then leads to Superman's ascension to the Presidency of the USSR. Later, seeking an opportunity to get rid of the now President Superman he allies with the Batman and the United States Government, however the plan fails and he is lobotomised by Superman.