Conrad John Schuck Jr. (born February 4, 1940) is an American actor, primarily in stage, movies and television. He is best known for his roles as Sgt. Charles Enright, in the 1970s crime drama McMillan & Wife, starring Rock Hudson and as Herman Munster, in the 1980s sitcom The Munsters Today, in which he reprised the role originated by Fred Gwynne.

He was also a regular "guest celebrity" on game shows in the 1970s and 1980s, appearing as a guest on such programs as Pyramid, Hollywood Squares, Password Plus and Super Password, and The Cross-Wits.

From 1971 to 1977, Schuck appeared as San Francisco Police Detective Sergeant Charles Enright in the television series McMillan & Wife and also starred as an overseer in the miniseries Roots. In 1976, he played Gregory "Yo-Yo" Yoyonovich in the short-lived series Holmes & Yo-Yo; both it and McMillan & Wife had been created, and were produced, by Leonard B. Stern for what is now NBCUniversal Television. He starred in ABC's 1979 TV holiday special The Halloween That Almost Wasn't, a.k.a. The Night Dracula Saved the World, as the Frankenstein Monster. (He would again use the Universal International Frankenstein-monster makeup format in The Munsters Today; see below.) In 1979 John starred in a short-lived TV series version of Turnabout, in which he and Sharon Gless played a couple named Sam and Penny, who swap bodies. Some installments from that comedy series were reedited into the made-for-TV film Magic Statue, named for the artifact which caused the two to exchange bodies.

In the summer of 1979, during this period as a game-show guest Celebrity, he made his Broadway debut playing Oliver "Daddy" Warbucks as a replacement in the role of the original Broadway musical comedy, Annie at the Alvin Theatre, for a special three-week engagement. In 1980, Schuck began appearing as a "regular replacement" for a year and a half, along with Allison Smith as Annie and Alice Ghostley as Miss Hannigan.

Also in the 1980s, Schuck starred as Herman Munster in the syndicated situation comedy The Munsters Today, which co-starred Lee Meriwether as Lily Munster. In character as Herman, a role Fred Gwynne had originated in the 1960s, Schuck was made up as the Frankenstein Monster, according to the makeup format whose copyright NBCUniversal still owns, for the second time in his career; the first (see above) was in The Halloween That Almost Wasn't a.k.a. The Night Dracula Saved the World.

Schuck married Actress Susan Bay, with whom he had a son, Aaron. The couple divorced in 1983. He married his current wife, Painter Harrison Houlé, in 1990.

In 1986, Schuck took the role of Klingon ambassador Kamarag in Star Trek IV: The Voyage Home. He reprised the role in 1991 in Star Trek VI: The Undiscovered Country, becoming one of only five guest roles to appear in more than one Star Trek motion picture. (The others were the characters of David Marcus, Saavik, Sarek, and Fleet Admiral Cartwright.)

He guest starred in Star Trek: Deep Space Nine as Legate Parn, Star Trek: Voyager as Chorus #3, Star Trek: Enterprise as Antaak, and Babylon 5 as Draal in "The Long, Twilight Struggle" (1995). In 1994, he appeared as Ralgha nar Hhallas (callsign Hobbes) in Wing Commander III: Heart of the Tiger. He then guest-starred in several episodes of Law & Order: Special Victims Unit as the NYPD Chief of Detectives Muldrew.

Under his full name of "Conrad John Schuck," he opened in the role of Daddy Warbucks in the Broadway revival of Annie in December 2006, and toured nationally in the role. He later appeared in the films Holy Matrimony and String of the Kite.

In 2013, he appeared as Senator Max Evergreen in Nice Work If You Can Get It. Most recently, Schuck joined the cast of writer/director Chris Blake's (a.k.a. Christopher Blake Johnson) indie horror film, All Light Will End.