Colleen Wheeler is a Canadian actor with a career spanning film, television, voice work, and theatre. She was born on March 21, 1967, in Scarborough, Ontario. Her training includes graduating from the University of Alberta's Acting Program.

Wheeler began her on-screen career in the early 1990s, appearing in films such as Two Brothers, a Girl and a Gun and Better Than Chocolate. She has since built an extensive list of credits in both live-action and voice roles. Her voice acting work is prominent in animation, where she has contributed to several notable series. One of her significant early voice roles was as Raven Darkhölme, also known as Mystique, in the animated series X-Men: Evolution, appearing in 21 episodes from 2000 to 2003. She also provided voices for other animated projects, including the series Kong and the feature film The Willoughbys.

In the realm of anime, Wheeler has voiced characters in English-language adaptations of several popular series. As the user noted, she is the voice of the Shinigami Rem in the Death Note series, including the television anime and the special Death Note Relight - Visions of a God. Her other anime voice credits include Miho Sasama and Mrs. Suzuki in Human Crossing, Louise Brown and Ralph's Mother in Master Keaton, Simus Al Bakharov and Zenna Zabi in Mobile Suit Gundam, Skun in Oban Star-Racers, and Luchs in Saber Marionette J.

In addition to her screen work, Wheeler has an accomplished career in theatre, with numerous stage credits to her name. She has performed in several productions with Bard on the Beach, a major Shakespeare festival, taking on roles such as Kate in The Taming of the Shrew, Gertrude in Hamlet, and Titania in A Midsummer Night's Dream. Her talent has been recognized with multiple Jessie Richardson Theatre Awards, honoring excellence in Vancouver theatre. She has won five Jessie Awards across different categories: for Outstanding Performance by an Actress in a Supporting Role in the Small Theatre Division (2003 and 2004), in a Leading Role in the Small Theatre Division (2005), and in both Supporting (2012) and Lead (2014) roles in the Large Theatre Division.