First attempt at a HunyuanVideo LoRA:

Arnold Schwarzenegger - Trigger is "ohwx person" - include "ohwx person" in your prompt to call up the Arnold likeness.

Note: If you have an issue where it seems like the LoRA isn't doing anything at all, try changing the "Load_Device" on the "HunyuanVideo Model Loader" node to "OffLoad Device" (instead of "main_device"). That should resolve it.

Strength recommendations: 1 to 1.25 - boost it up a bit if the model doesn't incorporate "ohwx person" enough. The likeness is definitely there at a strength of 1, but raising the strength to 1.15 (for example) will increase the likelihood that the model will focus on "ohwx person" (Arnold) and not something else in the prompt.