In the Superman/Batman: Apocalypse movie, a mix of gibberish and Esperanto is used to depict Kryptonian dialog spoken by both Superman and Supergirl.
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In Superman Returns, it is revealed that Clark is father to the half-Kryptonian child Jason White.
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Also in Silver Age and Modern continuity Kryptonians have more than one ethnic group, such as dark-skinned Kryptonians from Krypton's Vathlo Island that resembles Earth humans of Sub-Saharan African descent, and a group from the continent of Twenx that resembles Earth Asian and Latino peoples.
In JLA: The Nail, the Joker is provided with Kryptonian gauntlets and launches an attack on Arkham Asylum, forcing most of the inmates to fight each other before brutally murdering Batgirl and Robin while forcing Batman to watch.
Highfather appears in JLA: The Nail, involved in a war between New Genesis and Apokolips, triggered when Apokolips assumed that a Kryptonian shield around Earth was part of a sneak attack by New Genesis and decided that the only way to prevent their destruction was to attack first.
Subsequently, Shakespeare is revealed to be a member of the Superman Dynasty in the 31st century, where he operates wearing a grey costume similar to that of Conner Kent, the Kryptonian/Human hybrid clone who fights crime in the 21st century as Superboy.
In the Elseworlds story JLA: The Nail Krypto is an early product of an experiment in splicing Kryptonian DNA to Earth creatures.
Night Girl has the powers of super-strength equivalent to that of Superboy or Mon-El and durability (though not quite at Kryptonian levels), but only in darkness or deep shadow.