J.G. (for George) Welch, a friend of Richard Venables and member of the St Austin's eleven in L'Affaire Uncle John, is captain of Merevale's cricket team in The Odd Trick; shares a study at Merevale's with Charteris in The Pothunters and The Manoeuvres of Charteris, plays wing at footer in The Manoeuvres of Charteris. A good student and excellent all-around athlete, Captain of Cricket in The Pothunters. Runs a fast mile to summon Dr. Adamson for house-master Merevale's daughter in Welch's Mile Record. See also Harrison's Slight Error.

• L'Affaire Uncle John
• The Odd Trick
• The Pothunters
• The Manoeuvres of Charteris
• Harrison's Slight Error