Justice League #10 introduced Jarro, "Starro in a jar", born of a fragment of Starro, who died in Justice League: No Justice #3 (2018).

Jarro introduction

Jarro is mainly monitored by Batman, and no other Justice League member seems to be baffled by his presence. Even more, Batman (and no other Leaguer, but most importantly Batman) does not seem to be the least worried about having this kind of telepathy/mind control power running around free, with no sort of control. Admittedly Jarro has behaved with good intentions so far, but so did every superhero in the DC universe and Batman stays wary of whatever harm might come from their powers, notoriously having contingency plans for most of them (Green Arrow excepted).

Actually, issue #29 of Justice League (2019) demonstrated how powerful Jarro was already, with him being able to mind-control the whole League. Batman gives him a pep talk, a hug and no more mention is made of the incident.

This leaves me baffled. If anything, I'd have expected Batman to become super doubtful of Jarro after that, not treat him like a regular kid who made a goofy mistake. Furthermore with the out-of-character behaviour, Batman lets Jarro call him "Dad", "Pop", stay on his shoulder, treating him as a son/pet when he never demonstrated this kind of affection (in such a public, lasting way) for anyone, including the Robins, especially Damian.

Now obviously Batman is in a bad place these days after

Alfred's death in Batman #77 (2019),

but the opening of Detective Comics #1017 (2019) makes it clear he wasn't even there to provide Damian with some emotional support

and Damian definitely needs some, more than Jarro, as Bane killed Alfred in front of him.

Why then is Batman, who's now "more brood than man", acting so out-of-character with Jarro? Why does a newly-introduced, potential conqueror psychic starfish get more love and leeway from the most paranoid guy in the DC universe than anyone else? Is it simply a writing choice to play on the "cute" string or is there more at play here?

Bonus related question: does Batman have a contingency plan for Jarro?

  • Do you want to alienate the mind controlling psychic conqueror?
    – IT Alex
    Commented Feb 15, 2021 at 15:26

1 Answer 1


One of the issues of Dark Knights: Death Metal has a panel that references the comic series that supposedly explains why Batman and Jarro are so mushy. My assumption is that Jarro saw him as a father, being the only person in contact with him for ages. Knowing his potential for havoc, Batman is trying to nurture him and prevent chaos.

  • 2
    Hi, welcome to the site. This answer would be greatly improved if you were to add the relevant comic panel or page from the issue you mentioned. Answers based on canon evidence are much preferred to those based on pure speculation. Commented Oct 17, 2021 at 22:26

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