LEGO Jurassic World

All the variants of John Hammond will be unlocked just by playing through Story Mode, however you will have to purchase the Lost World version of him. John Hammond Jurassic World will set you back 145,000 studs. Once you have them both unlocked simply switch both of your characters to John Hammond, or the Lost World variant, and the trophy will unlock.

There are 2 John Hammond Characters unlocked as you progress through the game. Both cost 250,000 studs from the Shop on the second floor of the Innovation Centre. Once purchased switch both on screen Characters to John to unlock the trophy (either in a Level, or in one of the Hubs/Innovation Centre).

Note that you cannot have 2 of the same Character on screen simultaneously. You need both John Hammond and John Hammond (Lost World). To switch Characters, hold down to bring up the Character Wheel, then tap the icon at the bottom to go to the full Character select menu. Tap the Character you wish to add to return to play as that person, then hit to swap to the other on screen Character, and repeat the process to set the second person.