Neurological disease deaths in California

Cameron Mica Boyce (May 28, 1999 – July 6, 2019) was an American actor. He began his career as a child actor, appearing in the 2008 films Mirrors and Eagle Eye, along with the comedy film Grown Ups (2010) and its 2013 sequel. His first starring role was on the Disney Channel comedy series Jessie (2011–2015).

Annette Joanne Funicello (October 22, 1942 – April 8, 2013) was an American actress and singer. Funicello began her professional career as a child performer at the age of twelve. She rose to prominence as one of the most popular Mouseketeers on the original Mickey Mouse Club. As a teenager, she transitioned to a successful career as a singer with the pop singles "O Dio Mio", "Tall Paul" and "Pineapple Princess", as well as establishing herself as a film actress, popularizing the successful "Beach Party" genre alongside co-star Frankie Avalon during the mid-1960s.

Betty Marion White Ludden (January 17, 1922 – December 31, 2021 ) was an American actress and comedian. A pioneer of early television, with a career spanning over nine decades, White was noted for her vast work in the entertainment industry. She was among the first women to exert control in front of and behind the camera, and the first woman to produce a sitcom (Life with Elizabeth), which contributed to her being named honorary Mayor of Hollywood in 1955. Her most notable roles include Sue Ann Nivens on the CBS sitcom The Mary Tyler Moore Show (1973–1977), Rose Nylund on the NBC sitcom The Golden Girls (1985–1992), and Elka Ostrovsky on the TV Land sitcom Hot in Cleveland (2010–2015).

Susan Hayward (born Edythe Marrenner; June 30, 1917 – March 14, 1975) was an American actress and model. She was best known for her film portrayals of women that were based on true stories.

Karen Anne Carpenter (March 2, 1950 – February 4, 1983) was an American singer and drummer who formed half of the highly successful duo Carpenters with her older brother Richard. With a distinctive three-octave contralto range, she was praised by her peers for her vocal skills. Carpenter's work continues to attract praise, including appearing on Rolling Stone's 2010 list of the 100 greatest singers of all time.

Mary Frances "Debbie" Reynolds (April 1, 1932 – December 28, 2016) was an American actress, singer, and businesswoman. Her career spanned almost 70 years. She was nominated for the Golden Globe Award for Most Promising Newcomer for her portrayal of Helen Kane in the 1950 film Three Little Words. Her breakout role was her first leading role, as Kathy Selden in Singin' in the Rain (1952). Her other successes include The Affairs of Dobie Gillis (1953), Susan Slept Here (1954), Bundle of Joy (1956 Golden Globe nomination), The Catered Affair (1956 National Board of Review Best Supporting Actress Winner), and Tammy and the Bachelor (1957), in which her performance of the song "Tammy" reached number one on the Billboard music charts. In 1959, she released her first pop music album, titled Debbie.

Coy Luther "Luke" Perry III (October 11, 1966 – March 4, 2019) was an American actor. He became a teen idol for playing Dylan McKay on the Fox television series Beverly Hills, 90210 from 1990 to 1995, and again from 1998 to 2000. Perry also starred as Fred Andrews on the CW series Riverdale. He had guest roles on shows such as Criminal Minds, Law & Order: Special Victims Unit, The Simpsons, and Will & Grace, as well as a recurring role voicing Rick Jones in The Incredible Hulk (1996–1997) from Marvel Comics, and also appeared in various films, including Buffy the Vampire Slayer (1992), 8 Seconds (1994), The Fifth Element (1997), The Final Storm, The Beat Beneath My Feet (2016), and Once Upon a Time in Hollywood (2019), which was his final feature performance and earned him a Screen Actors Guild Award nomination.

Maurice White (December 19, 1941 – February 4, 2016) was an American singer, musician, songwriter, and record producer. He was the founder, leader, main songwriter, and producer of the band Earth, Wind & Fire, and served as the band's co-lead singer with Philip Bailey. Described as a "visionary" by Vibe and a "mastermind" by Variety, White was nominated for a total of 22 Grammys, of which he won seven. He was inducted into the Rock and Roll Hall of Fame and the Vocal Group Hall of Fame as a member of Earth, Wind & Fire, and was also inducted individually into the Songwriters Hall of Fame. He additionally worked with artists such as Deniece Williams, Cher, the Emotions, Barbra Streisand, Ramsey Lewis, and Neil Diamond.

Delores Judith Taylor (September 27, 1932 – March 23, 2018) was an American film actress, writer, and producer, known for her roles in the Billy Jack films of the 1970s.

James Edward Ingram (February 16, 1952 – January 29, 2019) was an American singer, songwriter, record producer, and instrumentalist. He was a two-time Grammy Award-winner and a two-time Academy Award nominee for Best Original Song. After beginning his career in 1973, Ingram charted eight Top 40 hits on the U.S. Billboard Hot 100 chart from the early 1980s until the early 1990s, as well as thirteen top 40 hits on the Hot R&B/Hip-Hop Songs chart. In addition, he charted 20 hits on the Adult Contemporary chart (including two number-ones). He had two number-one singles on the Hot 100: the first, a duet with fellow R&B artist Patti Austin, 1982's "Baby, Come to Me" topped the U.S. pop chart in 1983; "I Don't Have the Heart", which became his second number-one in 1990 was his only number-one as a solo artist.