It featured personalities such as Lynn Samuels, Bill Press, Alex Bennett, Mike Malloy, Ed Schultz, Thom Hartmann and Mark Thompson.

[1] Thom Hartmann and Mark Thompson can still be heard on the channel, along with Stephanie Miller, Michelangelo Signorile and Ari Rabin Havt.

Political analyst Andy Ostroy has criticized Sirius Left and liberal talk radio in general in The Huffington Post.

Ostroy disliked Sirius Left's three in-house hosts Alex Bennett, Lynn Samuels, and Mark Thompson.

Bennett was described as "an ungracefully-aging hippie himself, [who] offers up more gratuitous profanity than intellectual political thought"; Samuels on "any random listen could be whining about anything meaningless"; while Thompson, although "a smart, passionate guy, has a program so mellow in tone that it can literally put you to sleep.