- Jennie Garth (Kelly Taylor)
- Ian Ziering (Steve Sanders)
- Luke Perry (Dylan McKay)
- Brian Austin Green (David Silver)
- Tori Spelling (Donna Martin)
- Vincent Young (Noah Hunter)
- Lindsay Price (Janet Sosna)
- Daniel Cosgrove (Matt Durning)
Episode: If I Had a Hammer
Air Date: 1996-11-27
Runtime: 45 min
During an argument with Donna in the student union, David throws a tantrum and cuts his hand on a glass. He must see a psychiatrist after displaying hostile behavior toward the ER staff. Mel agrees with the doctor's recommendation that David be held 72 hours for observation. David is diagnosed with a mild form of manic depression. His mother comes to see him and advises him to moderate his behavior; he will not require medication if he seeks therapy and stops drinking. David thanks Donna for her support, and they decide to get back together. Steve faces plagiarism charges; Professor Randall, who assumed control of the independent study course after returning to C.U., recognized Brandon's writing. Randall still holds a vendetta against Brandon, and brings collusion charges against him. Kelly and Mark's plans for a romantic weekend getaway are foiled by a lost reservation. They finally secure a motel room, only to come down with food poisoning. The gang helps Willie build a house, which