This is a more general Unity topic, but if your Menu uses Unity UI, you can add a Raw Image component that has its Texture field set to a Render Texture. Assign this Render Texture to a Camera in the scene that points at a character in 3D space, and they'll then appear in the UI.
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This is a more general Unity topic, but if your Menu uses Unity UI, you can add a Raw Image component that has its Texture field set to a Render Texture. Assign this Render Texture to a Camera in the scene that points at a character in 3D space, and they'll then appear in the UI.