History of the Doom Patrol Part 4

Volume Three

Robotman; (reflected) Fever, Kid Slick, Freak and Fast Foward

It was revealed that Dorothy Spinner had a mental break down and unintentionally killed the rest of the team. She became comatosed and unknowingly created a "imaginary" Robotman. This Robotman created a new version of the team. The fake Robotman faded from existence upon discovering the truth of its existence. The other members found the real Robotman, who joined the team after he got a new body. Beast Boy, Doctor Light, Metamorpho and Elongated Man formed their own unofficial version of the team.

• Fast Foward / Ted Bruder- He could see 30 seconds into the future. He was nicknamed "Negative Man" due to being pemmistic.
• Fever / Shyleen Yao- She could create intense heat that lasts for short distances.
• Kid Slick / Vic Darge- He was stuck inside fictionless force field aura.
• Freak / Ava- She had prehensile hair that she can increase the size of.
• "Imaginary" Robotman
• Robotman / Cliff Steele

Volume 4

From Teen Titans volume 3 issue 35

Following Infinite Crisis, all the previous Doom Patrols were erased from continuity. This team debuted in a JLA comic and then got their own series. It was written and drawn by John Byrne and inked by Doug Hazlewood. This proved short-lived.
During Infinite Crisis, Superboy-Prime's ripples in time caused the Doom Patrol's previous contitunity returned. In the reprint version of the comic, several more former Doom Patrol members can be seen. The Chief was manipulating the team. However, Elasti-Girl, Beast Boy and Mento forced the Chief to give up leadership and Mento took the role.

• Bumblebee / Karen Beecher-Duncan- She could shrink. She had super strength, flight and the ability to fire sonic blasts via her suit
• Faith- She is former JLA member. She had telepathy and telekinesis. She could create an aura of cofidence. 
• Grunt- He was an implusive four-armed ape.
• Vox / Malcom Duncan- Longtime Teen Titans member, he had an artifical voice box  and lungs that he could use to make portals.
• Vortex- Can't find any info on him
• The Chief / Niles Caulder- He seemed to have been manipulating the members and claimed he wanted to return them to normal.
• Elasti-Girl / Rita Farr
• Negative Man / Larry Trainor
• Robotman / Cliff Steele
• Beast Boy / Garfield Logan
• Mento / Steve Dayton- He became mentally unstable during Infinite Crisis.

Volume 5

Clockwise: Negative Man, Elasti-Woman and Robotman

At the 2007 New York Comic Con, it was revealed Keith Giffen was going to write a new Doom Patrol comic. The artist was Matt Clark. It was canceled in 2011.
They used Oolong Island. Rocky Davis (a member of Challengers of the Unknown) was supported the team. Ambush Bug joined in issue 9.

• Elasti-Woman / Rita Farr- She had changed her codename from "Elasti-Girl" to "Elasti-Woman". The team shrink claimed Rita was "mothering" teammate Bumblebee. 
• Negative Man / Larry Trainor
• Robotman / Cliff Steele
• Ambush Bug / Irwin Schwab- He was an insane member that can teleport. He knew that he is in a comic book.
• Grunt
• Mento / Steve Dayton
• Bumblebee / Karen Beecher-Duncan- She had permentally shrunk to eight-inches tall.
• Vox

References:
http://en.wikipedia.org/wiki/Doom_Patrol
http://en.wikipedia.org/wiki/List_of_Doom_Patrol_members
http://en.wikipedia.org/wiki/Mal_Duncan
http://en.wikipedia.org/wiki/Bumblebee_(comics)
http://www.comicvine.com/grunt/4005-9043/
The DC Comics Encyclopedia