The key individuals who have testified in the Sean "Diddy" Combs trial include:

• Cassie Ventura (Fine) : Former partner and main prosecution witness. She testified about years of abuse, including physical violence and forced participation in non-consensual sexual acts with male escorts while Combs observed. Her testimony detailed a decade-long relationship marked by control, coercion, and abuse.

• Kid Cudi (Scott Mescudi) : Musician who dated Ventura during Combs' ongoing relationship with her. He testified about Combs invading his home and believed Combs was behind subsequent incidents like a break-in and his car being set on fire.

• Daniel Phillip : Former male escort who testified about being paid to engage in sexual acts with Ventura under Combs' direction and witnessing Combs' violent behavior toward Ventura.

• Dawn Richard : Singer signed to Combs' label who testified to witnessing Combs physically assaulting Ventura and being assaulted herself.

• "Jane" : A former girlfriend who testified under a pseudonym about being coerced into participating in orgies and suffering physical abuse from Combs.

• "Mia" : Combs' former assistant who testified about being forced into sexual acts and raped by him.

• Capricorn Clark : Former assistant and marketing director for Combs who testified about witnessing threats and assaults, and dealing with drugs in Combs' circle.

• George Kaplan : Former Combs bodyguard who described witnessing violent incidents and involvement with drugs.

• Hotel security personnel and federal agents involved in searches and investigations also testified, along with other former employees of Combs' enterprises and male escorts involved in the sexual encounters orchestrated by Combs.

In total, the prosecution called about 34 witnesses including celebrities, former partners, employees, and others directly involved or with firsthand knowledge related to the case. Combs did not testify, and the defense presented no witnesses.

Other notable figures mentioned during the trial include Usher, Big Kane, Yo Jimmy Iine, and Aubrey O'Day (who has been subpoenaed), but they have not necessarily testified.

This trial has included extensive testimony detailing allegations of racketeering, sex trafficking, physical abuse, and coercion over many years in Combs' inner circle.

If you want, I can provide a more detailed list or information about any specific witness.