Some Clash-men and members of British Reggae outfit Steel Pulse (courtesy of the very informative uncarved). Here's that band's song, "Jah Pitney (Rock Against Racism)"
Another home-grown British reggae act to join with Rock Against Racism was the the Cimarons.
The Cimarons released this single, which errs towards a post-original Wailers Bob Marley groove, around 1979.
Download Cimarons Rock Against Racism 12"
And since I clearly lack the language to do true reggae justice, let's move on to some reggata de blanc.
China Street were not the Clash, in fact, as is often pointed out, they sound a bit like another UK reggae-inspired punk band, The Members. The words and the playing are a little predictable but damn this one's a grower (the b-side is the de rigueur dub mix).
Download China Street Rock Against Racism 7"
Kudos, as is so often the case, to Punk Friction who covered China Street first.
And because this is post is already so damn busy let's add some Ovenman. Ovenman was a one-man New York New Wave band and this single, the 'band's only one is from 1981.
Download Ovenman Rock Against Racism 7"
Next: Yer D.O.A.