For example the deathclaw code is 0001db4c but you only have to type in 1db4c so you would type aceatme 1db4c 5 and that would spawn five deathclaws right on top of you. Another thing to remember is that for most if not all of the NPC codes, if they have any 0's at the beginning of them you can leave them out. Most of the Legendary versions of NPCs will be listed next to there original version with *LEG: to let you know those are the legendary codes, the rest will be typed in bold with an underline. To start off all spawn codes must be entered into the console which for me is opened with the ~ key, now the command for spawning in a NPC is:

It might take me awhile to finish as I am still playing the game myself but I like to spawn in enemies to test my settlements defenses as the attacks on settlements are usually pretty weak. I'm going to start with enemy and wild NPCs and than possibly work on a list of companion, friendly, and random NPCs etc. For this guide I will try to compile a complete list of all the codes for spawning in NPCs.

Fallout 4 super mutant companion mod