Were these guys separated at birth as well? Since Adam Sandler is the more well-known of the two, I’ll state that Troy Garity looks like Adam Sandler (and not the other way around).
These 2 snapshots don’t really do the likeness justice, but if you happen to catch Troy Garity in a movie or TV series (like Boss, Elementary, or Sunshine), or an interview, you’ll understand what I mean. It’s the sound of his voice, the way he speaks, and the way he looks. The whole package!