In 1942, The Jester achieved national attention when he was identified as a potential recruit for the All-Star Squadron.  In response to a broad recruitment efforts, dozens of heroes including the Jester traveled to the Squadron’s headquarters in New York and participated in an introductory meeting for the team.  It was here that the Jester first learned about Earth-X when Uncle Sam appeared and explained the fates of several heroes that had recently gone there from Earth-Two (All-Star Squadron #31).  Several months later, when Uncle Sam recruited a second wave of heroes to travel across the multiversal void, the Jester joined them (All-Star Squadron #50).

While the Jester’s career was documented until 1950, whether these events took place on Earth-X or he returned to Earth-Two has never been revealed.  Uncle Sam claimed that the portal that opened in mid-1942 was almost certainly a one-way trip but this is likely inaccurate as Firebrand is thought to have made the trip to Earth-X somewhat later.  Whether the Jester returned to Earth-Two is unrevealed.

In the casework that followed, the Jester largely continued the same vein.  He remained a beat cop and worked for a Sgt. Hustace McGinty.  While McGinty (at least the Earth-Two version) was as suspicious of the Jester as Mulligan, overtime the relationship between the two men softened and the police began to see the Jester as more of an ally that a competitor or an adversary.   While the Jester’s career continued for the next decade in recorded casework, Chuck Lane remained a beat copy working the streets and close to the crimes he sought to prevent.

In addition to routine cases, the Jester’s later career encountered some recurrent and unusual adversaries.  He 1943 he had a run-in with a femme fatal named Lady Satan, wooing lonely men for a life insurance scam following their sudden departure (Smash Comics #41).  She also figured out the Chuck Lane and the Jester were the same and attempted to extort him to being part of her criminal operations but the Jester ultimately managed to discredit her (Smash Comics #42).

Later that year, he met Stoneface a handsome gangster noted for intense dispassion in committing murder.  He offers himself as a partner for a local ganglord after killing his original partner and the men chosen as replacements.  Stoneface was humorless and offended at gaiety, making him enraged by the Jester, whose attention he attracts by attempting to murder Chuck Lane.  The Jester subdues him by tickling him mercilessly (Smash Comics #46).  Stoneface later escaped during a routine prison transfer, humiliating the rookie officer assigned to him.  The Jester helps the rookie regain his confidence by capturing Stoneface and his whole gang (Smash Comics #53).

In 1948, Chuck Lane was on patrol when he noticed notorious gangleader Mike Gregara enter a laboratory building at a local university.  Shortly after, an explosion shatters the buildings windows and the Jester rushes inside to investigate.  He meets Dr. Sommers, chair of the Physics Department who leads him to a lab with a mangled body as he sees Gregara rushing away.  The chair explains that he warned the deceased scientist – Professor Wolfgang Stugg – that his experiments were dangerous and when McGinty arrives, he dismisses the Gregara angle and concludes death by accident for Stugg. Unconvinced, Lane becomes the Jester and pursues the Gregara lead.  He does find his quarry but a new criminal with fantastic powers of atomic radiation, glowing with power.  The criminal burns through vaults and can kill with a touch.  He reveals that he killed Gregara and left his mangled corpse in Stugg’s laboratory so he  - Wolfgang Stugg – could begin a life as a master criminal.  As the Jester resists, Stugg increases in power to battle him but loses control, burning himself out and dissipating into the ether.  Whether he re-formed is unknown (Smash Comics #75).

The last recorded case of the Jester occurred in 1949.  The further activities and ultimate fate of the Earth-Two Jester remained unrevealed.