None of them.
If you mean which actors from Harry Potter were in Sleepy Hollow then:
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the characters in Harry Potter are all different.
The Harry Potter books do not specify which characters are left handed.
There is no character in Harry Potter with the initials TS. There is a Sybil Trelawney initials ST. She was a professor who prompted Lord Voldemort to go after Potter.
Harry Potter is the character. The actor who played him was called Daniel Radcliffe.