Which other countries had "suicidal" aircrew in WW2?

Sonderkommando Elbe was doing nothing more than other pilots had already been doing since the dawn of aerial warfare.

They were not "Kamikaze" pilots, they were simply attacking bombers until they were out of ammunition and then set their fighter on a collision course and baled out.

It's called "ramming".

Again, we're talking about pilots who flew missions similar to the Kamikaze., not people who flew suicide missions.

My understanding is that Sonderkommando Elbe used greener pilots, who had a high fatality rate just getting off the ground. For armament, they had a single machine gun.
A veteran pilot would find aerial ramming to be difficult. A green pilot with a single machine gun was probably more comparable to a Kamikaze than almost any other pilot out there.

Russians employed Taran ramming tactics as well. Though this tactic fell out of use as their fortunes in war improved.