Little Britain comedians Matt Lucas and David Walliams and I'm A Celebrity...Get Me Out Of Here! double act Ant and Dec have made their way into the latest edition of Who's Who.
The society guide includes 1,000 new entries for 2010, recognising those who have reached the top of their fields.
In the sporting world, tennis ace Roger Federer gets his first mention, and at the age of 28 is one of the youngest new entrants.
He lists his hobbies as golf, football, skiing, friends, PlayStation, music and playing cards.
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, Lucas lists his pastimes 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 Bear Grylls, a survival expert who was in the SAS, has a suitably adventurous list which includes: "mountaineering, paragliding, sailing, yoga, martial arts".
The youngest non-hereditary new entrant is MP Chloe Smith, 27, and the oldest is artist and sculptor Louise Bourgeois who will turn 98 on Christmas Day.
