Are you saying they are very different other than being white and bald?
If you are...
When comparing two separate people, yes, they are nearly identical.
However, when comparing PJ with his other 47 genetically identical clones, Sundance is definitely one of the bigger outliers.
Also - for those of you clinging onto some conspiracy that this is a completely different person, please explain the name. We all know that if PJ had a clone, it would be named Sundance. We also have never even heard of a non-clone human with the name Sundance. It's simple math. This dude is PJ's clone.