*Does an actor have to actually like the character he or she is playing in order to do it justice?

Don Cheadle’s portrayal of ethically-challenged management consultant Martin Kaan in Showtime’s “House of Lies” earned him a Golden Globe win earlier this year, and a second nomination this morning. The character and his ill behavior are no doubt entertaining, but the man who inspired the character said his own win-at-all-cost philosophy was hard to bear.

“I was a consultant. I hated myself,” said Martin Kihn a former employee of Booz Allen Hamilton and the author of “House of Lies: How Management Consultants Steal Your Watch and Then Tell You the Time.”

“I think that consultants are a lot like actors, and the skill is not to solve a business problem or really to have any expertise” he told us. “The skill is to be able to present oneself as someone who could solve a business problem or may potentially have expertise. So we’re taught a whole vocabulary that can be applied in any situation. I mean, we could literally go into any industry and sound like we knew what we were talking about just because we’re using these words that we were taught. So in a way there’s a sense of dishonesty. It’s not perfectly disingenuous or ingenuous, and I don’t like consultants. My brother’s a consultant. I don’t like him.”

But, does Cheadle like Marty? Listen to his answer below.

Showtime will premiere the third season of “House of Lies” on Sunday, Jan. 12 at 10 p.m.

Watch the teaser below.