What's the word?

So I know there's a word out there that I've completely forgotten about which perfectly described a certain type of person.

The person I'm looking to describe is someone that acts or thinks for anothers supposed benefit when the other person didn't ask.

I hope you can help as I keep racking my brain and can't remember

SOLVED. The word was Officious.

Apologies I had work and have only just got the chance to get back to this post. So it was solved a lot earlier. Thanks for commenting.