Depends on what type of cake you are making.

I would guess a UK style would be with potato and breadcrumbs.

I've seen a lot of US crabcakes just binded with mayo and maybe just a little breadcrumbs/crackers.

Thi fish cakes sometimes use blitzed seafood as the binder

fish cakes goes lovely with some mash potato and a handful of peas/sweetcorn, and tomato sauce...just yum

Will try that - thanks.
Might work with rissoles too.... as they're also prone to being dry and crumbly.

I would serve them with peas (I like the birds eye garden peas ) and tartare sauce. Maybe a bit of broccoli or a few runner beans if I want the extra veg. but definitely no more potatoes.

Just nice plain fresh bread and lashings of butter.

why not ?

a bit of mash is yummy with fish cakes..but each to their own lol

Because they already have potato in them. Can't really imagine wanting to eat 2 lots of potato's in one meal.
I wouldn't dish up extra potatoes with a shepherds pie either, because the potatoes are on top of the meat.

Only if you make your fishcakes with potato in them

i agree..also i have potato wedges and chips with FC..but they do make a nice butty all the same ..same goes with shepards pie, i like chips or potato wedges with it, and same goes with slapping some in a butty

mushy peas, and champagne, I think.

That's what fishcakes are to me. Fish and potatoes mixed together. So no need to have more potatoes.
If I was having the other type (thai type) I definitely wouldn't put potatoes with them.