Death To The Doctor (Doctor Who Magazine #360)

Comics  The Eighth Doctor and Izzy have a two-panel cameo in this fill-in story from during the period when the Tenth Doctor and Martha were in residence in the DWM comic strip.  They're shown besting Valis, a highly flammable being composed of gas particles which writer Jonathan Morris described in an interview for the collection "The Widow's Curse" as cowled in robes like the Ghost of Christmas Yet To Come. He should look scary and enigmatic" (as reproduced on the TARDIS Wikia from which all of this is quoted).  Along with Frobisher, it's the first time comics characters of the past had appeared in the nuWho era.

The gag of the strip is that Valis, along with a number of second string villains with delusions of grandeur gather together to find a plan to defeat the Doctor once and for all.  This a few years before a similar team up in TV's The Pandorica Opens, although that consisted of main A-listers plus whatever else was lying around in Neil Gorton's creature shop, whereas this has losers like The Mentor ("Oh right like --" "Yes ... but not copying.  It's purely coincidental!")  Art is by Roger Langridge, so it's clearly supposed to be funny and fortunately it is, very much, although final few panels are rather poignant as the Doctor and Martha land amid the aftermath.

Placement:  After TV Action! perhaps?