Sinclair is a mean and brave man who has two co-workers. He was send by his mistress Miss Kathleen Gidney. He has a never give up attitude when he tries to steal "the Widow." He wants to accomplish his goal by getting his Gigi(the Widow) back. When he steps into a trap, he gets scared when he thinks its a ghost. He seems to hate kids especially Finn Baxter and his sister, Alexis Baxter when he and his crew finds them home alone.
Welcome Mr. Hughes.
How fascinating. Why don't you just shut up.
- He is portrayed by Malcolm McDowell.
- Sinclair is the first villain to be old.