The link below was posted on a thread on another forum - it looks like it would be useful to you. Some of the shade plants listed include:
Baneberry
Dicentra (bleeding heart)
Columbine
Heuchera (Coral bells - which surprised me !)
Wild geranium
variegated goutweed - very invasive - doesn't surprise me that even an Alska winter won't kill the stuff!

Bulbs included Scilla and Tarda tulips (small botanical tulips - very pretty...)

All the ferns they list would grow in shade. In the groundcover list, lily-of-the valley grows in shade. Bunchberries will too but not flower much.

Keep in mind that raised beds freeze earlier and thaw faster than beds in the ground. Things on the edge of the bed are more likely to be damaged than things against the house. It would be worth it in late fall to to stack bales of straw against the outer edge of the bed to add extra insulation to protect agaist feezing too hard and damage from freeze/thaw cycles.

A good local nursery would be a good source of information about what will do well in shade in the area. Contacting a local garden society would also be a good idea.

Good luck!

Here is a link that might be useful: Plants for Alaska