Brent Spiner has been playing the android Data on and off since the character debuted in Star Trek: The Next Generation in 1987, and he has always enjoyed the versatility of the role. TNG followed the adventures of the USS Enterprise-D and its crew as they explored the galaxy, and Data's journey to learn more about humanity became one of the show's most successful storylines. By observing Captain Jean-Luc Picard (Patrick Stewart) and the others around him, Data did his best to emulate humans and became more and more human as the show progressed.
https://screenrant.com/star-trek-tng-brent-spiner-data-unlimited-character/