#18 Jonathan Frakes
Star Trek series: Star Trek: The Next Generation
Character name: William T. Riker
Frakes originated the role of Riker in The Next Generation and reprised it in all four TNG movies. He also guest-starred as Riker in Deep Space Nine, Voyager, Enterprise, Picard, and Lower Decks. Riker served as the first officer for Captain Jean-Luc Picard for 15 years on the USS Enterprise-D and USS Enterprise-E before finally accepting his own command with the USS Titan.
Like most former Star Trek actors, much of Frakes’ acting work after Star Trek has been animation voice acting. He most notably voiced the recurring role of David Xanatos in the Disney series Gargoyles.
Aside from acting, Frakes has also made a career as a director. In addition to helming the Star Trek movies First Contact and Insurrection, he has also directed episodes of several TV shows, including The WB’s Roswell, TNT’s Leverage, ABC’s Castle, CBS’ NCIS: Los Angeles, USA Network’s Burn Notice, ABC’s Agents of S.H.I.E.L.D., TNT’s The Librarians, and Fox’s The Orville.