- LEARY
- He experimented with LSD at Harvard
- Psychologist who popularized the phrase "question authority"
- Actor Denis
- Comic Denis
- LSD espouser Timothy
- Comedian Denis
- Rescue Me star
- In 1987 he said that the current generation had "a brain dressed up with nowhere to go"
- Turn on, tune in, drop out adviser
- Denis of "The Ref"
- Turn on, tune in, drop out advocate
- Denis of "Rescue Me"
- Figure in the high '60s?
- Counterculturist Timothy
- Denis who voiced smilodon Diego in the "Ice Age" series
- Radical Timothy
- Tuned-in Timothy
- Counterculturalist Timothy
- Chaos & Cyber Culture author
- Timothy who preached, "Turn on, tune in, drop out"
- Rescue Me star Denis
- Timothy who preached the message found in this puzzle's theme
- '60s counterculturist Timothy
- Rescue Me actor Denis
- The Sandlot actor Denis
- '60s guru Timothy
- Counterculture guru
- '60s counterculture guru
- Stone's father in ". . . Spider-Man"
- Saber-tooth tiger voice in the "Ice Age" films
- Onetime LSD guru
- Author of "Turn On, Tune In, Drop Out"
- Tripper Timothy
- Harvard proponent of higher education?
- He went on a lot of trips in the 1960s
- Distrustful: Slang.
- Suspicious: Slang var.
- Wary: Colloq.
- Suspicious: Colloq.
- Suspicious: Slang.
- Timothy or Mrs. O'
- Commander of Eastern Sea Frontier: 1943–46
- W.W. II vice admiral
- Drug-culture leader in the 60's
- LSD advocate Timothy
- A U.S. vice admiral in W.W. II
- Politics of Ecstasy author
- 60's tripper Timothy
- Timothy who took trips
- The Psychedelic Reader collaborator
- 60's guru
- 1960's tripper Timothy
- Actor/comedian Denis
- Big name in '60s counterculture
- Timothy who wrote "Turn On, Tune In, Drop Out"
- 1960s trip taker
- Doctor whom Nixon called "the most dangerous man in America"
- Noted acid studier
- 1960s counterculture figure
- 1960s counterculture guru Timothy
- Pioneer in psychedelics
- He was kicked off Harvard's staff in 1963
- Denis or Timothy
- Tripping Timothy
- Timothy who took many trips
- LSD pioneer Timothy
- Counterculture icon Timothy
- Stand-up comic Dennis
- Counterculture guru Timothy
