Not Charlie's type at all, but the guy hooks up with her because he's lost everything and is desperate to find new clients.
They didn't, but it isn't entirely clear if, in the final episode, Hank and Karen are actually on or off or in bed or out of bed.
The show was funny, quirky, hot, and sexy with an inclination to delight its viewers with topless babes, in and out of the sack.
They were in and out of beds and back seats of cars all through all seven seasons of the show.