Rodak returns and Raggett arrives for busy Rotherham United
Raggett, 24, joins the Millers on a season-long loan from fellow Championship side Norwich City.
The defender signed for the Canaries last summer but was loaned back out to former club Lincoln City.
He made 30 appearances in total last season, notching three goals.
Raggett famously scored the only goal of the game when Lincoln beat Burnley 1-0 in the FA Cup fifth round in 2017 - helping the Imps become the first non-league side in 103 years to reach the FA Cup quarter-finals.
Raggett joins fellow new recruits Clark Robertson, Kyle Vassell, Zak Vyner and Billy Jones at the New York Stadium.
United continue their pre-season preparations tonight (Wednesday) with a home game against Premier League Cardiff City.
Rotherham have also completed the signing of Rodak on a season-long loan from Fulham, subject to EFL and FA ratification.
The Slovakia under-21 international returns to the AESSEAL New York Stadium after a successful loan spell last season, in which he helped the Millers to promotion back to The Championship.
The 21-year-old has been involved in Fulham’s pre-season preparations, and is in line to play a part for the Millers on Tuesday night as they host Cardiff City in a friendly at the New York.