You will not be able to re-download them, or play any games that you had previously downloaded & installed via Playstation Plus. If you try to download any of the games from your download history, it will not work.
However, if you later decide to renew your subscription, these games will become available for use again. They are even re-downloadable, as long as you added the games to your cart and successfully checked out before their free offer period passed.
Q: How long do I get to keep the free games with PS Plus?
A: Games you get with PS Plus are free to download with a PS Plus membership. As long as you are a PS Plus member, you’ll always have access to any game you’ve added to your library, even if you’ve previously deleted a game from your hard drive.
Q: If a game is no longer available for free with PS Plus, can I still download it for free with my PS Plus membership?
A: If you did not add a game to your library when it was free with PS Plus, you will not be able to secure your free download. However, if you added a game to your library when it was available for free, but it’s no longer on your hard drive, you can visit the PlayStation Store and re-download it anytime, as long as you’re a PS Plus member.
Q: How many times can I download / re-download a game in the Instant
Game Collection?
A: Download a game as many times as you like, even if it’s been deleted from your PS4 hard drive, as long as you’re a PS Plus member.
Q: What happens to the games and add-ons I download for free through a PS Plus membership if I decide to not renew my membership?
A: If you do not renew your PS Plus membership, you won't have access to previous free games downloaded with PS Plus. If you have purchased add-ons for a game you received free with PS Plus, and the add-ons require the free game to play, you will not be able to access the add-ons if you choose not to renew your membership.
Should you decide to re-activate your membership, you can again play all free games downloaded, along with all purchased add-ons for these games. Alternatively, you may also purchase the specific game to access any purchased add-ons for the game.
Best Answer
No. Content licenses are bound to the account that activated them. Once the PSN+ account laps, it defaults to a standard PSN account, the free games that were licensed would then be invalid on that system for all accounts. But, any games you had actually purchased, even at a discount price would still be available for all accounts (unless you also removed the account from the system).
The only way to be able to play those games again would be to either renew your subscription to the account that originally downloaded them, or just buy them under the alternate account.
Specifically in regards to your question though. Any "free" games that you downloaded on your UK profile would have to be re-purchased by the US profile to re-aquire them. The only way you would be able to have them free for the US profile is if you had also had a paid US account concurrent to your UK account and had activated the game when (or if) it had been available for that account.
I know you may think this is stupid but remember, the free games are a perk for paid subscribers for that region. If you no longer subscribe to that region then you are no longer eligible for the perks.