Imperial kath, if lets say theres a calculation on her, and an ion cannon.

would the Ion cannon's cancellation of the dice trigger the stress if the attack goes through (assuming of course there is a crit within the cancelled dice)?

No. Answered in the FAQ.

The wording for Kath indicates that the defender receives a stress if "he" cancels at least one crit.

Since Kath's weapon is what is canceling the crits and not the defender, then I would not expect the stress to trigger.

My understanding is that Kath's ability triggers when crits on dice rolls are cancelled by evades on dice or a token.

Chewbacca's ability should not trigger it, because the crit damage is not cancelled - but the effects just do not get resolved.

Likewise Determination discards the card, but does not cancel anything shown on the dice.

The wording for Kath indicates that the defender receives a stress if "he" cancels at least one crit.

Since Kath's weapon is what is canceling the crits and not the defender, then I would not expect the stress to trigger.

My understanding is that Kath's ability triggers when crits on dice rolls are cancelled by evades on dice or a token.

Chewbacca's ability should not trigger it, because the crit damage is not cancelled - but the effects just do not get resolved.

Likewise Determination discards the card, but does not cancel anything shown on the dice.

Looking at the wording of her ability, does this mean that if I somehow face off against Imperial Kath, I can argue that my pilot is female, and the pronoun means I don't suffer a stress?

The wording for Kath indicates that the defender receives a stress if "he" cancels at least one crit.

Since Kath's weapon is what is canceling the crits and not the defender, then I would not expect the stress to trigger.

My understanding is that Kath's ability triggers when crits on dice rolls are cancelled by evades on dice or a token.

Chewbacca's ability should not trigger it, because the crit damage is not cancelled - but the effects just do not get resolved.

Likewise Determination discards the card, but does not cancel anything shown on the dice.

Looking at the wording of her ability, does this mean that if I somehow face off against Imperial Kath, I can argue that my pilot is female, and the pronoun means I don't suffer a stress?

I was thinking the same thing:

Kath Scarlet, Juno Eclipse, Ibitisam, Nera Dantels, Jan Ors, and Howlrunner would qualify...

The wording for Kath indicates that the defender receives a stress if "he" cancels at least one crit.

Since Kath's weapon is what is canceling the crits and not the defender, then I would not expect the stress to trigger.

My understanding is that Kath's ability triggers when crits on dice rolls are cancelled by evades on dice or a token.

Chewbacca's ability should not trigger it, because the crit damage is not cancelled - but the effects just do not get resolved.

Likewise Determination discards the card, but does not cancel anything shown on the dice.

Looking at the wording of her ability, does this mean that if I somehow face off against Imperial Kath, I can argue that my pilot is female, and the pronoun means I don't suffer a stress?

I was thinking the same thing:

Kath Scarlet, Juno Eclipse, Ibitisam, Nera Dantels, Jan Ors, and Howlrunner would qualify...

Don't forget the Scum!

You girls are just clutching at straws now.