Simplify the following text for a Grade 6 native English-speaking person.
Original: Sean Maher recalls reading for the part and liking the character of Simon Tam , but that it was Whedon 's personality and vision that `` sealed the deal '' for him .
Simplified: Sean Maher remembers reading for the part and liking the character of Simon Tam . He said it was Whedon 's personality and vision that `` sealed the deal '' for him .