Byatt left King George's Arena in August 2015 for Tooting and Mitcham and went on to sign for Whyteleafe shortly after.
However, the popular striker - who netted 110 goals at his time with Casuals and famously played for Corinthians Paulista in January 2015 is back and raring to go.
Robinson has signed from fellow Ryman South club Molesey, following James Cottee who signed last month.
The midfielder last played for Casuals in 2011 before moving on to play for the likes of Met Police.
We welcome both Jamie and Sam who we're sure will make fine additions to James Bracken's squad.