Clue in on who briefly appeared on the true-crime series.

Because of Young’s commitments in Shondaland, Beth was quietly written off the show in later seasons.

She appeared in several episodes of the series' first four seasons.

Mandy Patinkin (2005-2007)

Richard Cartwright/CBS

Sometimes butting heads withbut ultimately championingthe team of sleuths, Strauss was a valuable asset to the BAU.

However,Atkinsonreappeared in flashback sequences for a season 9 episode and the series finale.

Like Howell, Monroe appeared in a hallucination scene later in the series.

Jennifer Love Hewitt (2014-2015)

CBS

Thankfully, she made it out alive, once again.

Her personal experience makes her useful to the team, and she eventually becomes an FBI agent herself.

His character was also referenced in a season 10 episode.

Bellamy Young (2011-2013)

Cliff Lipson/CBS

Sweeney (2009)

The Cutting Edgestar D.B.

Sweeney got a break from hearing “toe pick!”

several times a day when he turned up for a three-episode stint onCriminal Mindsas U.S. Howell returned for hallucination scenes in season 9 and the series finale.

Jane Lynch (2006-2008)

Richard Cartwright/CBS

Jeanne Tripplehorn (2012-2014)

Monty Brinton/CBS

Jayne Atkinson (2007-2014)

Michael Yarish/CBS

Mark Hamill (2013)

Robert Voets/CBS

Nicholas Brendon (2007-2014)

Monty Brinton/CBS

James Van Der Beek (2007)

CBS

Meredith Monroe (2005-2013)

Richard Foreman/CBS

Elle Fanning (2006-2007)

CBS

Jason Alexander (2008)

Sonja Flemming/CBS

Rachel Nichols (2010-2011)

Sonja Flemming/CBS

Esai Morales (2013-2015)

Richard Foreman/CBS

Lola Glaudini (2005-2006)

Ron Jaffe/CBS Photo Archive via Getty Images

D.B. Sweeney (2009)

CBS

C. Thomas Howell

Richard Foreman/CBS via Getty Images

Amber Stevens West (2014-2015)

CBS