Forest Green have signed midfielder Alex Rodriguez Gorrin on a permanent deal, and winger Dominic Thompson and goalkeeper Tommy Simkin on loan.
The 30-year-old spent time on trial with Rovers in September before rejoining the U's on a short-term deal.
The Spaniard was, however, limited to only four appearances for the League One side this campaign.
Left-sided Thompson, who can play in defence or on the wing, joins from League One side Blackpool.
The former Brentford player, 23, joined the Tangerines in 2022 and has played 42 times since, with 12 games this season.
Stoke academy player Simkin made his first-team debut for the Potters in December's Championship defeat by Sheffield Wednesday.