Comedienne Angie Le Mar has called the late Felix Dexter a comedy "genius".
She added: "He was clever, intelligent and funny but also so unassuming."
Felix, who was just 52, passed away yesterday after a battle with cancer.
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Kate burst out of the blocks at the London Stadium at the Olympic Park.
Without guarantee, many witnesses had threatened to stay silent by claiming the legal right of privilege against self-incrimination.
The attack happened on a train between St Albans Abbey and Watford North station in November.