Each game in the collection has different voice actors for Bowser. Charles Martinet voiced Bowser in Super Mario 64 (1996), Scott Burns voiced Bowser in Super Mario Sunshine (2002) and Kenny James voiced Bowser in Super Mario Galaxy (2007).
Each game in the collection has different voice actresses for Princess Peach. Leslie Swan in Super Mario 64 (1996), Jen Taylor in Super Mario Sunshine (2002) and Samantha Kelly in Super Mario Galaxy (2007).