No8 Narraway and centre Trinder have returned to Kingsholm for treatment on respective calf and ankle problems.
Both Gloucester men had missed out on original selection for the senior squad but had themselves been called up as injury cover for Tom Wood and Manu Tuilagi.
Banahan and Waldrom played for the Saxons in Saturday's win over the Irish Wolfhounds.
Bath utility back Banahan started on the wing but has also been used as a centre, while No8 Waldrom was a try scorer for the second string at Sandy Park.
Former second row Banahan and New-Zealand-born No8 Waldrom were both part of the World Cup squad Down Under and will now look to push for a place in the matchday 22 for the trip to Murrayfield to face Scotland on Saturday.
England have lost Toby Flood, Courtney Lawes, Louis Deacon, Tuilagi, Trinder, Narraway and Wood to injury ahead of the Calcutta Cup clash in Edinburgh.
Revised England squad:
Dave Attwood (Bath), Mouritz Botha (Saracens), Calum Clark (Northampton), Alex Corbisiero (London Irish), Dan Cole (Leicester), Tom Croft (Leicester), Phil Dowson (Northampton), Dylan Hartley (Northampton), Joe Marler (Harlequins), Lee Mears (Bath), Ben Morgan (Scarlets/WAL), Tom Palmer (Stade Francais/FRA), Geoff Parling (Leicester), Chris Robshaw (Harlequins), Matt Stevens (Saracens), Rob Webber (London Wasps), David Wilson (Bath), Thomas Waldrom (Leicester)
Chris Ashton (Northampton), Matt Banahan (Bath), Brad Barritt (Saracens), Mike Brown (Harlequins), Lee Dickson (Northampton), Owen Farrell (Saracens), Ben Foden (Northampton), Alex Goode (Saracens), Charlie Hodgson (Saracens), Joe Simpson (London Wasps), Charlie Sharples (Gloucester), David Strettle (Saracens), Jordan Turner-Hall (Harlequins), Ben Youngs (Leicester)