It's the same. Think of Alice in Wonderland - Alice au pays des merveilles.
First names are always spelled the same.
The name Samantha is spelled the same way in French.
The name Jordan is spelled the same way in French.
The name "Karla" is spelled the same in French as it is in English.
Wallace is spelled the same way in English that it is in French.
It is the same as English: Alice.
The name Dimitri in French is also spelled Dimitri, pronounced as "dee-mee-TREE".
The name Frances is spelled "Françoise" in French.
In French, the name Oliver is spelled "Olivier".
The name "Frank" in French is spelled as "Franck."
The name Isabel in French is spelled "Isabelle."
Peter is spelled Pierre in French.