- Was an expert sculptor, specialising in designs made from seashells.
- Francis Durbridge agreed to Coke playing his creation provided that the playwright did not alter the scripts.
- With Marjorie Westbury as wife Steve, played Francis Durbridge's sleuth Paul Temple in eleven BBC Radio serials from March 1954's "Paul Temple and the Gilbert Case" to March 1968's "Paul Temple and the Alex Affair". (He had earlier played a villain in the 1950 tale "Paul Temple and the Vandyke Affair").
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