The society guide includes 1,000 new entries for 2010, recognising those who have reached the top of their fields.
Actors Brad Pitt and Morgan Freeman have also been added to the tome, as well as British comedian Ricky Gervais, actress Anna Friel and writer Mariella Frostrup.
The 162nd edition of Who's Who includes more than 33,000 entries giving biographical information.
In the book, Matt Lucas lists his past-times as "eating crisps, watching football, eating chocolate, watching stage musicals, sleeping, eating crumpets", while Walliams, who swam the Channel for charity, opts for swimming.
Money saving guru Martin Lewis is included, and says his hobbies are: "trying to get my average Scrabble score above 400, reading historic novels, very poor golf, anything with lists, jive, watching athletics, supporting Manchester City".
Chief Scout and TV presenter Bear Grylls, a survival expert who was in the SAS, has a suitably adventurous list which includes: "mountaineering, paragliding, sailing, yoga, martial arts".